Infection risk assessment method and system for nursing care

Abstract

The present invention relates to the technical field of epidemic modeling, and in particular to an infection risk assessment method and system for nursing, which obtains relevant infection information of the infectious disease to be analyzed, the severity of the condition of each patient suffering from the infectious disease to be analyzed, the contact information between the patient and the nursing staff, the physical assessment susceptibility of each nursing staff, and the contact information between different nursing staff, analyzes these data, and then determines the severity of the infection risk of each nursing staff being infected by each patient and each other nursing staff with whom there is contact, and finally determines the infection risk assessment index of each nursing staff. The present invention effectively improves the accuracy of infectious disease infection risk assessment.

Description

Technical Field

[0001] The present invention relates to the technical field of epidemic modeling, and in particular to an infection risk assessment method and system for nursing. Background Art

[0002] A variety of assessment models have been developed for nursing infection risk assessment, including failure mode and effects analysis (FMEA), risk matrix method, Delphi method, etc. These assessment models are helpful in formulating reasonable preventive measures by systematically identifying and quantifying infection risks, thereby effectively reducing the spread of infectious diseases.

[0003] However, in the existing process of using assessment models to assess nursing infection risks, the assessment is often conducted through statistical data, and there is a lot of human involvement in the process. Due to the influence of various factors such as the severity of the patient's condition and the individual differences of the nursing staff themselves, it is impossible to reliably assess the infection risk based on actual conditions, resulting in low accuracy in nursing infection risk assessment. Summary of the invention

[0004] The object of the present invention is to provide a method and system for assessing infection risk in nursing, so as to solve the problem of low accuracy of existing nursing infection risk assessment.

[0005] To solve the above technical problems, in a first aspect, the present invention provides an infection risk assessment method for nursing, comprising the following steps:

[0006] Obtaining relevant infection information of the infectious disease of the type to be analyzed, information on the severity of each patient suffering from the infectious disease, contact information between the patient and the caregiver, physical assessment susceptibility of each caregiver, and contact information between different caregivers;

[0007] Determine the severity of the infection risk of each caregiver being infected by each patient with whom they have contact based on the relevant infection information, the severity of each patient's condition, the contact information between the patient and the caregiver, and the physical assessment susceptibility of each caregiver;

[0008] Determine the severity of the infection risk of each caregiver being infected by each other caregiver with whom there is contact, based on the relevant infection information, the severity of the infection risk of each caregiver being infected by each patient with whom there is contact, the contact information between different caregivers, and the physical assessment susceptibility of each caregiver;

[0009] The infection risk assessment index of each caregiver is determined by comprehensively analyzing the severity of the infection risk of each caregiver being infected by all patients with whom he / she has contact and the severity of the infection risk of each caregiver being infected by all other caregivers with whom he / she has contact.

[0010] In combination with the first aspect above, in some possible implementations, determining the severity of the infection risk of each caregiver being infected by each patient with whom they have contact includes:

[0011] Determine the risk level of each patient as a source of infection based on the relevant infection information and the severity of each patient's condition;

[0012] Determine the infection probability of each caregiver being infected by each patient with whom they have contact based on the relevant infection information, the severity of each patient's condition, the contact information between each caregiver and each patient with whom they have contact, and the physical assessment susceptibility of each caregiver with whom they have contact;

[0013] The severity of the infection risk of each caregiver being infected by each patient with whom each caregiver has contact is determined based on the risk level of each patient with whom each caregiver has contact as a source of infection and the probability of each caregiver being infected by each patient with whom each caregiver has contact.

[0014] In combination with the first aspect above, in some possible implementations, the relevant infection information includes at least the actual number of patients and the number of confirmed cases by conventional tests obtained based on big data, the actual number of patients and the number of confirmed cases by conventional tests obtained based on test data, and the average number of infected persons of the infectious disease, and the severity of the disease information includes at least the severity index value of the disease, and determining the risk level of each patient as a source of infection includes:

[0015] Determine the degree to which the infectious disease is difficult to detect based on the actual number of patients and the number of confirmed cases by conventional tests obtained from big data, and the actual number of patients and the number of confirmed cases by conventional tests obtained from test data;

[0016] The risk level of each patient as a source of infection is determined by integrating the degree of difficulty in detection, the average number of infected people and the severity index value of each patient's condition.

[0017] In combination with the first aspect above, in some possible implementations, determining the risk level of each patient as a source of infection includes:

[0018] Normalizing the average number of infected persons to obtain an infected person index;

[0019] Determine the risk level of the infectious disease to be analyzed by combining the number of infected people indicator and the difficulty of detection;

[0020] The risk level of each patient as a source of infection is determined by combining the risk level of the infectious disease and the severity index value of each patient's condition.

[0021] In combination with the first aspect above, in some possible implementations, the relevant infection information further includes a transmission route and a transmission probability under each transmission route, the contact information includes a contact duration and a contact frequency under each transmission route, and determining the infection probability of each caregiver being infected by each patient with whom there is contact includes:

[0022] Determine the contact intensity between each caregiver and each patient in contact with each caregiver under each transmission route based on the contact duration and frequency between each caregiver and each patient in contact with each caregiver under each transmission route;

[0023] According to the transmission probability under each transmission route and the contact intensity between each caregiver and each patient with whom he / she has contact under each transmission route, the infection probability of each caregiver under each transmission route relative to each patient with whom he / she has contact is determined;

[0024] According to the severity index value of each patient who has contact with each caregiver, and the contact intensity between each caregiver and each patient who has contact with each caregiver under each transmission route, the physical assessment susceptibility of each caregiver is corrected to obtain the corrected physical assessment susceptibility of each caregiver under each transmission route;

[0025] The modified physical susceptibility is used to modify the infection probability of each caregiver relative to each patient with whom they have contact under various transmission routes, and the infection probability of each caregiver being infected by each patient with whom they have contact is obtained.

[0026] In combination with the first aspect above, in some possible implementations, determining the severity of the infection risk of each caregiver being infected by each other caregiver with whom they have contact includes:

[0027] Taking each patient as a target patient, different levels of nursing staff are determined according to the contact between each target patient and different nursing staff, and between different nursing staff;

[0028] Determine the first nursing staff and the second nursing staff. Among nursing staff at the same level, the two nursing staff who are in contact are respectively regarded as the first nursing staff and the second nursing staff. Among nursing staff at adjacent levels, the nursing staff at the previous level who are in contact are regarded as the first nursing staff, and the nursing staff at the next level are regarded as the second nursing staff.

[0029] Determine the contact objects of the first nursing staff. Among nursing staff at the same level, the contact objects include: patients or nursing staff at the level above the first nursing staff; among nursing staff at adjacent levels, the contact objects include: patients and other nursing staff at the same level as the first nursing staff, or nursing staff at the level above the first nursing staff and other nursing staff at the same level as the first nursing staff;

[0030] For the target patient, determining the severity of the infection risk of the second caregiver being infected by the first caregiver with whom there is contact, based on the relevant infection information, the severity of the infection risk of the first caregiver being infected by the contacted object, the contact information between the first caregiver and the second caregiver, and the physical assessment susceptibility of the second caregiver;

[0031] For all patients, the severity of the infection risk of each caregiver being infected by the same other caregiver with whom there was contact is combined to determine the severity of the infection risk of each caregiver being infected by each other caregiver with whom there was contact.

[0032] In combination with the first aspect above, in some possible implementations, determining the infection risk assessment index of each nursing staff member includes:

[0033] Determine the cumulative sum of the severity of the infection risk of each nursing staff being infected by each patient with whom the nursing staff has contact, and obtain a first cumulative value;

[0034] Determine the cumulative sum of the severity of the infection risk of each caregiver being infected by each other caregiver with whom there is contact, to obtain a second cumulative value;

[0035] The normalized value of the sum of the first accumulated value and the second accumulated value corresponding to each nursing staff is used as the infection risk assessment index of each nursing staff.

[0036] In combination with the first aspect above, in some possible implementations, the method further includes:

[0037] According to the infection risk assessment index of each nursing staff, an infection check is performed on each nursing staff. The greater the value of the infection risk assessment index, the higher the frequency of infection checks on the nursing staff.

[0038] In combination with the first aspect above, in some possible implementations, performing infection inspection on each nursing staff includes:

[0039] The infection risk assessment index of each nursing staff is judged. If the infection risk assessment index is greater than or equal to the first severity threshold, the corresponding nursing staff is checked for infection at a first set frequency. If the infection risk assessment index is less than the first severity threshold and greater than or equal to the second severity threshold, the corresponding nursing staff is checked for infection at a second set frequency. If the infection risk assessment index is less than the second severity threshold, the corresponding nursing staff is checked for infection at a third set frequency. The first set frequency is greater than the second set frequency, and the second set frequency is greater than the third set frequency.

[0040] To solve the above technical problems, in a second aspect, the present invention also provides an infection risk assessment system for nursing, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method in the above first aspect or any possible implementation manner of the first aspect when executing the computer program.

[0041] To solve the above technical problems, in a third aspect, the present invention further provides a computer program product, which includes: a computer program code, which, when executed on a computer, enables the computer to execute the method in the above first aspect or any possible implementation of the first aspect.

[0042] To solve the above technical problems, in a fourth aspect, the present invention further provides a computer-readable storage medium, which stores a computer program code. When the computer program code runs on a computer, the computer executes the method in the above first aspect or any possible implementation of the first aspect.

[0043] The present invention has the following beneficial effects: infectious diseases have a variety of relevant infectious information, such as the infectious ability of the infectious disease itself, whether it is easy to be detected, the transmission path, etc., and these relevant infectious information will directly affect the infection risk of nursing staff; the severity of the patient's illness affects the infectiousness of the source of infection, and the individual susceptibility of the nursing staff themselves affects the possibility of the nursing staff being easily infected. The contact intensity can be evaluated based on the contact information between the patient and the nursing staff and between different nursing staff. When the contact intensity is high, it is easier for the infectious disease to spread between the patient and the nursing staff and between different nursing staff. Therefore, when each patient is used as the source of infection, the above-mentioned relevant infectious information, the severity of each patient's illness, the contact information between the patient and the nursing staff, and the physical assessment susceptibility of each nursing staff are combined to analyze the severity of the infection risk of each nursing staff being infected by each patient with whom there is contact. At the same time, considering that the caregivers are infected with infectious diseases by patients and are already contagious, but do not show relevant symptoms of infectious diseases, due to the mutual contact between different caregivers, the caregivers infected with infectious diseases by patients will further transmit infectious diseases to other caregivers. Therefore, each caregiver who has direct or indirect contact with the patient is regarded as the source of infection, and combined with the above-mentioned relevant infection information, the severity of the infection risk of each caregiver being infected by each patient with whom they have contact, the contact information between different caregivers, and the physical assessment susceptibility of each caregiver, the severity of the infection risk of each caregiver being infected by each other caregiver with whom they have contact is analyzed. Finally, for each caregiver, the severity of the infection risk of being infected by all patients and all other caregivers can be combined to determine the infection risk assessment index of the caregiver being infected. The present invention objectively analyzes and processes various factors that affect the spread of infectious diseases, such as relevant infection information of infectious diseases, condition severity information of each patient suffering from the infectious disease to be analyzed, contact information between patients and caregivers, physical assessment susceptibility of each caregiver, and contact information between different caregivers, so as to ultimately accurately determine the infection risk assessment index of each caregiver, thereby effectively improving the accuracy of nursing infection risk assessment. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1This is a flowchart of a method for assessing infection risk in nursing according to an embodiment of the present invention;

[0046] Figure 2 A flowchart of the steps of determining the severity of the infection risk of each caregiver being infected by each patient with whom they have contact according to an embodiment of the present invention;

[0047] Figure 3 A flowchart of the steps of determining the infection probability of each caregiver being infected by each patient with whom they have contact according to an embodiment of the present invention;

[0048] Figure 4 A flowchart of the steps of determining the severity of the infection risk of each caregiver being infected by each other caregiver with whom there is contact according to an embodiment of the present invention;

[0049] Figure 5 is a schematic diagram of an infection level structure diagram of an embodiment of the present invention;

[0050] Figure 6 The present invention is a schematic diagram of the structure of an infection risk assessment system for nursing according to an embodiment of the present invention. DETAILED DESCRIPTION

[0051] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0052] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0053] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0054] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0055] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0056] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more". In the description of the present invention, unless otherwise specified, "multiple" refers to two or more than two, and other quantifiers are similar; "at least one item", "one or more items" or similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one item a can represent any number of a; for another example, one or more items of a, b and c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple; "and / or" is a kind of association relationship that describes the associated objects, indicating that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0057] Although operations or steps are described in a specific order in the drawings in the embodiments of the present invention, it should not be understood that it is required to perform these operations or steps in the specific order shown or in a serial order, or that all the operations or steps shown must be performed to obtain the desired results. In the embodiments of the present invention, these operations or steps may be performed in series; these operations or steps may also be performed in parallel; or some of these operations or steps may be performed.

[0058] At the same time, it is understood that the data involved in the technical solution of the present invention (including but not limited to the data itself, the acquisition or use of the data) shall comply with the requirements of the relevant laws, regulations and relevant provisions. Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those generally understood by technicians in the technical field of the present invention, and all parameters or indicators in the formulas involved in the present invention are normalized values ​​that eliminate the influence of dimensions.

[0059] In order to solve the problem of low accuracy of existing nursing infection risk assessment, an embodiment of the present invention provides an infection risk assessment method and system for nursing, which determines the severity of the infection risk of each nursing staff being infected by each patient with whom there is contact by analyzing relevant infection information of infectious diseases, and combining the patient's condition severity information, the contact information between the patient and the nursing staff, and the physical assessment susceptibility of each nursing staff; further, determines the severity of the infection risk of each nursing staff being infected by each other nursing staff with whom there is contact by analyzing relevant infection information of infectious diseases, the severity of the infection risk of each nursing staff being infected by each patient with whom there is contact, the contact information between the nursing staff, and the physical assessment susceptibility of each nursing staff; finally, determines the infection risk assessment index of each nursing staff by combining the severity of the infection risk of each nursing staff being infected by all patients with whom there is contact and the severity of the infection risk of each nursing staff being infected by all other nursing staff with whom there is contact, thereby effectively improving the accuracy of nursing infection risk assessment.

[0060] An infection risk assessment method and system for nursing provided by an embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0061] Figure 1 A basic flow chart of an infection risk assessment method for nursing provided by an embodiment of the present invention is shown, such as Figure 1 As shown, the method specifically comprises the following steps:

[0062] Step S100: Obtain relevant infection information of the infectious disease to be analyzed, the severity of each patient suffering from the infectious disease, the contact information between the patient and the caregiver, the physical assessment susceptibility of each caregiver, and the contact information between different caregivers.

[0063] For infectious diseases to be classified, such as certain viral infectious diseases, in order to assess the risk level of patients as sources of infection, and thus determine the severity of the risk of infection for caregivers from each patient with whom they have contact, it is first necessary to obtain relevant infection information of the infectious disease. The relevant infection information includes the actual number of patients and the number of confirmed cases through routine tests obtained based on big data, the actual number of patients and the number of confirmed cases through routine tests obtained based on test data, the average number of infections, the transmission routes, and the probability of transmission under each transmission route.

[0064] Among them, the transmission routes of infectious diseases are obtained through official public health resources (such as the World Health Organization, the National Center for Disease Control and Prevention, etc. These institutions usually provide authoritative information on the transmission routes of infectious diseases), and the transmission probability under each transmission route is obtained through epidemiological research (specifically, observational studies such as cohort studies and case-control studies can be used to analyze infection cases caused by different transmission routes and then calculate the transmission probability). At the same time, the average number of people infected by the disease (that is, the average number of people each infected individual can spread to) and related information on the conventional detection methods corresponding to the disease are obtained through big data statistical analysis. Conventional detection methods refer to the medical detection methods that are currently more commonly used. For example, for some viral infectious diseases, conventional detection methods can refer to nucleic acid testing.

[0065] At the same time, the actual number of patients and the number of confirmed cases by conventional tests are obtained based on big data, as well as the actual number of patients and the number of confirmed cases by conventional tests obtained based on test data, in order to determine the detection capacity of conventional testing methods for the infectious disease. When the detection capacity is strong, it means that the conventional testing methods are easier to detect the infectious disease, and the risk level of the patient corresponding to the infectious disease is lower. Assume that it is currently known that a certain Patients with infectious diseases Through big data analysis and processing technology, we can know whether conventional detection methods can be used to detect patients with the infectious disease. of When patients are tested, those who are truly infected with the infectious disease can be correctly identified The number of people is ,So and That is, the actual number of patients obtained from big data and the number of confirmed cases through routine testing. of patients, of whom were diagnosed with infectious diseases through routine testing The number of people is ,So and That is, the actual number of patients obtained based on the test data and the number of confirmed cases through routine testing.

[0066] Generally speaking, patients with severe illness have high viral loads and are usually more contagious, while patients with mild illness have low viral loads and are relatively less contagious. Therefore, the higher the severity of the infectious disease a patient suffers from, the more contagious the patient is, and the higher the risk of the patient as a source of infection. In order to assess the risk of a patient as a source of infection, it is also necessary to obtain the severity information of each patient with the infectious disease to be analyzed. Specifically, a professional physician can diagnose the patient and give a score value, or a machine learning algorithm can be used to uniformly diagnose the patient and give a score value. The machine learning algorithm learns the relationship between the disease characteristic information of different patients and the severity of the disease. After the physician inputs the patient's disease characteristic information, the machine learning algorithm comprehensively confirms the score value corresponding to the severity of the patient's disease. This is not limited here. The value range of the score value is between 0 and 1. The value of the score value reflects the level of the patient's infectious ability as a source of infection. The larger the value, the higher the infectious ability, and vice versa. The score value is used as an indicator of the severity of the disease, and the severity of the disease indicator value is used as the severity of the disease information. It should be understood that the machine learning algorithm trains the neural network model by using a large amount of training data, so that the neural network model learns the relationship between the disease characteristic information of different patients and the severity of the disease, thereby obtaining a trained neural network model. When performing a test, the patient's disease characteristic information is input into the trained neural network model, and the trained neural network model can output a score value corresponding to the severity of the patient's disease. Since the process of obtaining a score value corresponding to the severity of a patient's disease by training a neural network model using a machine learning algorithm belongs to the prior art, it will not be described in detail here.

[0067] In the process of interaction between patients with infectious diseases and other caregivers, there is a risk that the patient will transmit the infectious disease to be analyzed to other caregivers, and under the same protection conditions, the probability of infection will be related to the length of time the patient interacts with other caregivers, the frequency of interaction, and the probability of transmission of the pathway corresponding to the interaction method. The shorter the contact time between the patient and other caregivers, the lower the frequency of interaction, and the lower the probability of transmission of the pathway corresponding to the interaction method, the lower the probability of the caregiver being infected, and the lower the risk of infection. Therefore, in order to facilitate the subsequent assessment of the risk of caregivers being infected by patients, it is necessary to obtain contact information between patients and caregivers. The contact information includes the contact duration and frequency under each transmission route. During implementation, the contact between the caregiver and the patient is recorded. Assuming that Patients with infectious diseases The disease has transmission pathway, then A patient and a The nursing staff The first transmission route The contact here refers to direct contact, and the contact time corresponding to this method is (i.e. the sum of the time in each relevant record), the contact frequency corresponding to this method is , the time period corresponding to the contact time and contact frequency can be reasonably set as needed. The embodiment of the present invention sets the time period to 1 day. The contact time and frequency between each patient and each caregiver under various transmission routes are used as the contact information between the patient and the caregiver. In addition, since the caregiver may not show relevant symptoms of the infectious disease when infected with an infectious disease, but is also contagious at this time, there is a risk that the infectious caregiver will transmit the infectious disease to other caregivers during the interaction between different caregivers. Therefore, the contact information between different caregivers is obtained in the same way as the contact information between the patient and the caregiver described above.

[0068] In addition, different caregivers may have different individual susceptibility. Under the same conditions, caregivers with higher individual susceptibility are more likely to be infected with infectious diseases than caregivers with lower individual susceptibility. Therefore, in order to assess the risk of caregivers being infected by patients or other caregivers, it is necessary to obtain the physical assessment susceptibility of each caregiver. In implementation, physical examinations are performed on relevant caregivers regularly to obtain scores for each susceptibility-related dimension (including: age and gender, body BMI index, past medical history, vaccination records, living habits and biochemical indicators), and the physical assessment susceptibility of each caregiver is comprehensively obtained. The value of physical assessment susceptibility is between 0 and 1. At the same time, the previous infection records of each caregiver and the direct or indirect contact intensity between the caregiver and the patient are collected. The data is used to correct the physical assessment susceptibility of the comprehensively assessed caregivers, so that the physical assessment susceptibility assessment results are more accurate. It should be understood that in order to ensure the accuracy of the physical assessment susceptibility of each nursing staff, the time interval for regular physical examinations of relevant nursing staff needs to be as short as possible, and when determining the comprehensive physical assessment susceptibility of each nursing staff, it is based on the scores of each susceptibility-related dimension corresponding to the recent period of time. Of course, as other implementation methods, feature selection can also be used to determine the key indicators that affect the health of nursing staff, and then train a neural network model to learn the relationship between the key indicators that affect the health of nursing staff and the physical state, and then predict and quantify the physical state of the nursing staff, and convert it into a score, which is set between 0 and 1. The higher the score, the worse the physical state of the nursing staff, and the score is recorded as the physical assessment susceptibility of the nursing staff.

[0069] Step S200: Determine the severity of the infection risk of each caregiver being infected by each patient with whom they have contact based on the relevant infection information, the severity of each patient's condition, the contact information between the patient and the caregiver, and the physical assessment susceptibility of each caregiver.

[0070] By analyzing the relevant infectious information of the infectious diseases to be analyzed, and combining the severity information of each patient's condition, the risk level of each patient as a source of infection can be determined. For example, the severity of the patient's illness, the infectious ability of the infectious disease itself, and the detection ability of the disease detection method can be considered. When the severity of the patient's condition is low, the infectious ability of the infectious disease itself is weak, and the easier it is for the detection method to detect the disease, the lower the risk level of the patient corresponding to the disease. Based on the risk level of each patient as a source of infection, combined with the relevant infectious information of the infectious diseases to be analyzed, the individual susceptibility of different caregivers, and the contact information between patients and caregivers, the probability of infection of each caregiver being infected by each patient with whom there is contact can be determined, and finally the severity of the infection risk of each caregiver being infected by each patient with whom there is contact can be determined. For example, when the individual susceptibility of the caregiver is high, the severity of the patient's condition is higher, and the contact intensity between the patient and the caregiver under various transmission routes is high, it means that the probability of infection of the caregiver being infected by the patient with whom there is contact is greater, and at the same time, the risk level of the patient as a source of infection is higher, then the severity of the infection risk of the caregiver being infected by the patient with whom there is contact is higher.

[0071] In the embodiment of the present invention, Figure 2 As shown, the severity of the infection risk of each caregiver being infected by each patient with whom they have contact is determined, and the implementation steps include:

[0072] Step S201: determining the risk level of each patient as a source of infection based on the relevant infection information and the severity of each patient's condition;

[0073] Step S202: determining the infection probability of each caregiver being infected by each patient with whom they have contact, based on the relevant infection information, the severity of each patient's condition, the contact information between each caregiver and each patient with whom they have contact, and the physical assessment susceptibility of each caregiver with whom they have contact;

[0074] Step S203: Determine the severity of the infection risk of each caregiver being infected by each patient with whom each caregiver has contact, based on the risk level of each patient with whom each caregiver has contact as an infection source and the probability of each caregiver being infected by each patient with whom each caregiver has contact.

[0075] For the above steps, first, the degree to which the infectious disease is difficult to detect is determined based on the relevant infectious information of the infectious disease to be analyzed, the actual number of patients obtained from big data and the number of confirmed cases through conventional tests, and the actual number of patients obtained from test data and the number of confirmed cases through conventional tests. Then, based on the degree to which the infectious disease is difficult to detect and in combination with the average number of infected people in the relevant infectious information of the infectious disease to be analyzed and the severity of each patient's condition, the risk level of each patient as a source of infection is determined.

[0076] In the embodiment of the present invention, the degree of difficulty in detecting the infectious disease to be analyzed is determined by the corresponding calculation formula:

[0077] ;

[0078] in, Indicates the infectious disease type to be analyzed the degree to which it is difficult to detect; and Represents the infectious diseases to be analyzed The actual number of patients and the number of confirmed cases through routine testing obtained from big data, and Represents the infectious diseases to be analyzed The actual number of patients obtained based on trial data and the number of confirmed cases through routine testing.

[0079] In the above formula, Indicates the infectious disease type to be analyzed Conventional testing methods can correctly identify people who actually have infectious diseases The ability of patients to detect the disease is the sensitivity of conventional detection methods. The lower the sensitivity, the more likely the infectious disease is. The less likely it is to be detected. Indicates infectious diseases Corresponding to the detection rate of conventional detection methods, the fewer the proportion of patients are detected by conventional detection methods, the more likely it is that the infectious disease Of these two indicators, sensitivity is about the ability of conventional testing methods to identify cases, while detection rate is about the breadth and effectiveness of the application of conventional testing methods in the actual population.

[0080] In the embodiment of the present invention, based on the degree of difficulty in detection, and in combination with the average number of infected persons in the relevant infection information of the infectious disease to be analyzed, and the severity information of each patient, the risk level of each patient as an infection source is determined, and the corresponding calculation formula is:

[0081] ;

[0082] in, Indicates that the patient has an infectious disease of the type to be analyzed No. The risk level of each patient as a source of infection; Indicates that the patient has an infectious disease of the type to be analyzed No. The severity index of the patient's condition; Indicates the number of infected people; Indicates the infectious disease type to be analyzed The average number of people infected; Infectious diseases to be analyzed the degree to which it is difficult to detect; Represents the normalization function.

[0083] In the above formula, using Normalization function for the infectious diseases of the analyzed type The average number of infected people Normalize it and get the number of infected people index , and the number of infected people and infectious diseases The degree of undetectability Combined, we get the infectious diseases of the types to be analyzed Risk level , infectious diseases to be analyzed The more people the average number of infections is, the more infectious diseases are The higher the degree of difficulty in detection, the greater the corresponding risk; then use the patient's disease severity index This risk level is corrected to obtain the risk level of the patient as a source of infection.

[0084] Then, by analyzing the infectious diseases of the By comprehensively analyzing the relevant infection information, the severity of each patient's condition, the contact information between each caregiver and each patient with whom he or she has contact, and the physical assessment susceptibility of each caregiver who has contact with each patient, the probability of infection of each caregiver being infected by each patient with whom he or she has contact can be determined.

[0085] In the embodiment of the present invention, Figure 3 As shown, the infection probability of each caregiver being infected by each patient with whom there is contact is determined, and the implementation steps include:

[0086] Determine the contact intensity between each caregiver and each patient in contact with each caregiver under each transmission route based on the contact duration and frequency between each caregiver and each patient in contact with each caregiver under each transmission route;

[0087] According to the transmission probability under each transmission route and the contact intensity between each caregiver and each patient with whom he / she has contact under each transmission route, the infection probability of each caregiver under each transmission route relative to each patient with whom he / she has contact is determined;

[0088] According to the severity index value of each patient who has contact with each caregiver, and the contact intensity between each caregiver and each patient who has contact with each caregiver under each transmission route, the physical assessment susceptibility of each caregiver is corrected to obtain the corrected physical assessment susceptibility of each caregiver under each transmission route;

[0089] The modified physical susceptibility is used to modify the infection probability of each caregiver relative to each patient with whom they have contact under various transmission routes, and the infection probability of each caregiver being infected by each patient with whom they have contact is obtained.

[0090] For the above steps, according to the infectious disease to be analyzed The transmission pathway in the relevant infection information, as well as the contact information between each caregiver and each patient in contact with him, the contact duration and frequency under each transmission pathway can be used to determine the contact intensity between each caregiver and each patient in contact with him under each transmission pathway. The corresponding calculation formula is:

[0091] ;

[0092] in, Indicates Caregivers and their contacts with infectious diseases of the type to be analyzed No. Among the patients Contact intensity under different transmission pathways; Indicates Caregivers and their contacts with infectious diseases of the type to be analyzed No. The patient in The contact time under each transmission route is calculated in minutes; Indicates Caregivers and their contacts with infectious diseases of the type to be analyzed No. The patient in Frequency of contact under different transmission routes.

[0093] In the above formula, Caregivers and their contacts with infectious diseases of the type to be analyzed No. The longer the contact time and the higher the frequency of contact between patients, the The nursing staff and the corresponding The higher the intensity of contact between patients.

[0094] Furthermore, according to the type of infectious disease to be analyzed In the relevant infection information, various transmission pathways and the transmission probability under each transmission pathway are combined with the contact intensity of each caregiver relative to each patient with whom they have contact under each transmission pathway to determine the infection probability of each caregiver relative to each patient with whom they have contact under each transmission pathway. The corresponding calculation formula is:

[0095] ;

[0096] in, Indicates The number of nursing staff who have been in contact with infectious diseases of the type to be analyzed No. The patient in The probability of infection under each transmission route; Indicates the infectious disease type to be analyzed No. The probability of transmission under the transmission pathway; Indicates Caregivers and their contacts with infectious diseases of the type to be analyzed No. Among the patients Contact intensity under different transmission pathways; Represents the normalization function.

[0097] In the above formula, the infectious disease to be analyzed is In the The higher the transmission probability under a transmission route, the more infectious the disease is. No. It is easier to be transmitted through this transmission route, and nursing staff are more likely to be infected with infectious diseases. No. Among the patients The higher the contact intensity under the transmission route, the more likely the caregiver is to be infected with the infectious disease. No. The patient in The greater the possibility of infection under the transmission route, the greater the The greater the probability of infection through this transmission route.

[0098] According to the severity index value of each patient who has contact with each caregiver, and the contact intensity between each caregiver and each patient who has contact with him / her under each transmission route, the physical assessment susceptibility of each caregiver is corrected to obtain the corrected physical assessment susceptibility of each caregiver under each transmission route. The corresponding calculation formula is:

[0099] ;

[0100] in, Indicates The nursing staff Modified physical assessment susceptibility under these transmission routes; Indicates Physical assessment susceptibility of individual caregivers; Indicates that the patient has an infectious disease of the type to be analyzed No. The severity of the patient's condition; Indicates Caregivers and their contacts with infectious diseases of the type to be analyzed No. Among the patients Contact intensity under different transmission pathways; Indicated in The transmission route and Caregivers have been in contact with infectious diseases of the type to be analyzed The total number of patients.

[0101] In the above formula, since the more serious the patient's condition is, the more likely the caregiver is to be infected, and under the premise of the same degree of infection, the greater the contact intensity, the lower the susceptibility, so by calculating the same as the first Caregivers have been in contact with infectious diseases of the type to be analyzed The severity index of each patient's condition is related to the patient's Among the nursing staff The ratio of the contact strength under the two propagation paths, and using the The transmission route and The cumulative sum of the ratios of all patients with whom the caregiver has contact is The physical assessment susceptibility of each nurse is corrected to obtain the The nursing staff Modified physical assessment susceptibility under different transmission routes.

[0102] After determining the infection probability of each caregiver relative to each patient with whom they have contact under each transmission route and the corrected physical assessment susceptibility of each caregiver under each transmission route in the above manner, the corrected physical assessment susceptibility is used to correct the infection probability, thereby obtaining the infection probability of each caregiver being infected by each patient with whom they have contact. The corresponding calculation formula is:

[0103] ;

[0104] in, Indicates Caregivers have been exposed to infectious diseases of the type to be analyzed No. The probability of infection per patient, Indicates The number of nursing staff who have been in contact with infectious diseases of the type to be analyzed No. The patient in The probability of infection under each transmission route; Indicates The nursing staff Modified physical assessment susceptibility under these transmission routes; Indicates The number of nursing staff who have been in contact with infectious diseases of the type to be analyzed No. transmission between patients.

[0105] In the above formula, the higher the susceptibility of the caregiver to a certain transmission route, the greater the probability of being infected under this transmission route. Therefore, the modified physical assessment susceptibility of the caregiver to each transmission route is used to estimate the relative exposure of the caregiver to the infectious disease to be analyzed. The infection probability of each patient under this transmission route is corrected, and the corrected infection probabilities under all transmission routes are accumulated to obtain the infection probability of each caregiver being infected by each patient with whom there is contact.

[0106] Combining the risk level of each patient who has contact with each caregiver as a source of infection and the probability of each caregiver being infected by each patient who has contact with each caregiver, the severity of the risk of infection of each caregiver being infected by each patient who has contact with each caregiver can be determined. The corresponding calculation formula is:

[0107] ;

[0108] in, Indicates Caregivers have been exposed to infectious diseases of the type to be analyzed No. The severity of the infection risk transmitted by each patient, Indicates Caregivers have been exposed to infectious diseases of the type to be analyzed No. The probability of infection from a patient; Indicates that the patient has an infectious disease of the type to be analyzed No. The risk level of an individual patient as a source of infection.

[0109] In the above formula, when suffering from the infectious disease to be analyzed The higher the risk of the patient as a source of infection, and the greater the probability of the nursing staff who have contact with the patient being infected by the patient, the higher the probability of the nursing staff being infected by the infectious disease. The higher the severity, the greater the corresponding infection risk severity value.

[0110] Step S300: Determine the severity of the infection risk of each caregiver being infected by each other caregiver with whom they have contact based on the relevant infection information, the severity of the infection risk of each caregiver being infected by each patient with whom they have contact, the contact information between different caregivers, and the physical assessment susceptibility of each caregiver.

[0111] When a caregiver is infected with an infectious disease by a patient and is already contagious, but does not show symptoms of the infectious disease, due to the mutual contact between different caregivers, the caregiver infected with the infectious disease by the patient will further transmit the infectious disease to other caregivers, so it is also necessary to evaluate the infectious diseases to be analyzed. Transmission between different caregivers.

[0112] Referring to the same logic as above to determine the severity of the infection risk of each caregiver being infected by each patient with whom there is contact, the infectious disease of the type to be analyzed is The nursing staff who have contact with the patients are regarded as the source of infection, and the severity of the infection risk of these nursing staff being infected by each patient with whom they have contact is used as the corresponding disease severity index value, and the infectious diseases of different types are analyzed at the same time. The relevant infection information of the caregivers, the contact information between the caregivers, and the physical assessment susceptibility of each caregiver can determine the infectious disease of the type to be analyzed. When the nursing staff who has contact with the patient is taken as the infection source, the severity of the infection risk of other nursing staff who have contact with the infection source being infected by the infection source. Then, taking other nursing staff who have contact with the infection source as the infection source, and in the same way, the severity of the infection risk of other nursing staff who have contact with these infection sources being infected by the infection source can be determined, and so on, the severity of the infection risk of each nursing staff being infected by each other nursing staff who has contact can be finally obtained.

[0113] In the embodiment of the present invention, Figure 4 As shown, the severity of the infection risk of each caregiver being infected by each other caregiver with whom there is contact is determined, and the implementation steps include:

[0114] Step S301: Taking each patient as a target patient, determining nursing staff of different levels according to the contact between each target patient and different nursing staff, and between different nursing staff;

[0115] Step S302: Determine a first nursing staff and a second nursing staff. Among nursing staff at the same level, two nursing staffs that are in contact are respectively regarded as the first nursing staff and the second nursing staff. Among nursing staff at adjacent levels, the nursing staff at the previous level that is in contact is regarded as the first nursing staff, and the nursing staff at the next level is regarded as the second nursing staff.

[0116] Step S303: Determine the contact objects of the first nursing staff. Among nursing staff at the same level, the contact objects include: the patient or each nursing staff at the level above the first nursing staff; among nursing staff at adjacent levels, the contact objects include: the patient and other nursing staff at the same level as the first nursing staff, or each nursing staff at the level above the first nursing staff and each other nursing staff at the same level as the first nursing staff;

[0117] Step S304: for the target patient, determining the severity of the infection risk of the second caregiver being infected by the first caregiver with whom the contact exists, based on the relevant infection information, the severity of the infection risk of the first caregiver being infected by the contact object, the contact information between the first caregiver and the second caregiver, and the physical assessment susceptibility of the second caregiver;

[0118] Step S305: For all patients, the severity of the infection risk of each caregiver being infected by the same other caregiver with whom they have contact is comprehensively considered to determine the severity of the infection risk of each caregiver being infected by every other caregiver with whom they have contact.

[0119] For the above steps, patients with infectious diseases of the type to be analyzed Each patient is a target patient, and an infection hierarchy diagram is constructed according to the contact between each target patient and different caregivers, and between different caregivers, so as to determine caregivers at different levels. In the process of constructing the infection hierarchy diagram, the target patient and each caregiver are regarded as a node, and the node corresponding to the target patient and the node corresponding to each caregiver who has contact with the target patient are connected by lines, and at the same time, the nodes corresponding to any two caregivers who have contact are connected by lines, so as to obtain an infection hierarchy diagram. In the infection hierarchy diagram, the number of lines k corresponding to the node corresponding to each caregiver when it is connected to the node corresponding to the target patient through the least number of lines is determined, and at this time, the caregiver is determined as a caregiver of the kth level. According to this method, caregivers at different levels can be determined.

[0120] For ease of understanding, as an example, Figure 5 As shown, represents the node corresponding to the target patient, , , and represents the nodes corresponding to the four nursing staff, then the nodes and The corresponding nursing staff is the first-level nursing staff, and the node and The corresponding nursing staff are the second-level nursing staff.

[0121] In the first level, each nursing staff in the first level is regarded as a first nursing staff, and each other nursing staff in the first level who has contact with the first nursing staff is regarded as a second nursing staff. The first nursing staff is regarded as the source of infection, and the severity of the infection risk of the first nursing staff being infected by the contact object is regarded as the severity index value of the source of infection. The contact object here refers to the target patient. At the same time, combined with the type of infectious disease to be analyzed The severity of the infection risk of the second caregiver being infected by the first caregiver with whom there is contact can be determined by combining the relevant infection information of the first caregiver, the contact information between the first caregiver and the second caregiver, and the physical assessment susceptibility of the second caregiver in the same way as the above-mentioned determination of the severity of the infection risk of each caregiver being infected by each patient with whom there is contact. In this way, the severity of the infection risk of one caregiver being infected by another caregiver can be determined between different caregivers with whom there is contact in the first level.

[0122] For ease of understanding, as an example, Figure 5 As shown, the node The corresponding nursing staff acts as the first nursing staff and sets the node The corresponding nursing staff acts as the second nursing staff and can determine the node The corresponding nursing staff is node The corresponding infection risk severity of the nursing staff. The corresponding nursing staff acts as the first nursing staff and sets the node The corresponding nursing staff acts as the second nursing staff and can determine the node The corresponding nursing staff is node The corresponding severity of infection risk for nursing staff infection.

[0123] Furthermore, between the first and second levels, the nursing staff of the first level who have contact with the first nursing staff is regarded as a first nursing staff, and the nursing staff of the second level is regarded as a second nursing staff. The first nursing staff is regarded as the source of infection, and the sum of the severity of the infection risk of the first nursing staff infected by the contact object is used as the severity index value of the source of infection. The contact object here refers to the target patient and other nursing staff of the first level who have contact with the first nursing staff. At the same time, combined with the infectious disease to be analyzed The severity of the infection risk of the second caregiver being infected by the first caregiver with whom there is contact can be determined by using the relevant infection information of the first caregiver, the contact information between the first caregiver and the second caregiver, and the physical assessed susceptibility of the second caregiver in the same manner as the above-mentioned determination of the severity of the infection risk of each caregiver being infected by each patient with whom there is contact. In this way, the severity of the infection risk of a caregiver at the second level being infected by a caregiver at the first level can be determined between different caregivers with whom there is contact between the first level and the second level.

[0124] For ease of understanding, as an example, Figure 5 As shown, the node The corresponding nursing staff acts as the first nursing staff and sets the node The corresponding nursing staff acts as the second nursing staff and can determine the node The corresponding nursing staff is node The corresponding nursing staff infection risk severity. The corresponding nursing staff acts as the first nursing staff and sets the node The corresponding nursing staff acts as the second nursing staff and can determine the node The corresponding nursing staff is node The corresponding severity of infection risk for nursing staff infection.

[0125] Next, between the second level, each nursing staff in the second level is regarded as a first nursing staff, and each other nursing staff in the second level who has contact with the first nursing staff is regarded as a second nursing staff, the first nursing staff is regarded as the source of infection, and the sum of the severity of the infection risk of the first nursing staff infected by the contact object is regarded as the severity index value of the source of infection. The contact object here refers to the other nursing staff in the first level who have contact with the first nursing staff, and at the same time, combined with the infectious disease to be analyzed The infection risk severity of the second caregiver infected by the first caregiver with whom there is contact can be determined by combining the relevant infection information, the contact information between the first caregiver and the second caregiver, and the physical assessment susceptibility of the second caregiver in the same way as the above-mentioned determination of the infection risk severity of each caregiver infected by each patient with whom there is contact. In this way, the infection risk severity of one caregiver infected by another caregiver can be determined between different caregivers with whom there is contact in the second level.

[0126] For the same patient, according to the above method, the severity of the infection risk of one nurse being infected by another nurse among the nurses at the same level, and the severity of the infection risk of a nurse at the next level being infected by a nurse at the previous level among the nurses at adjacent levels are determined by iteration. By calculating the infection risk level between nurses for a single patient, interference between different patients can be avoided, which is conducive to improving the accuracy of the final calculation result.

[0127] For all patients, the severity of the infection risk of each caregiver being infected by the same other caregiver with whom there is contact is superimposed, so as to obtain the severity of the infection risk of each caregiver being infected by every other caregiver with whom there is contact.

[0128] Step S400: Determine an infection risk assessment index for each nursing staff member by comprehensively analyzing the severity of the infection risk of each nursing staff member being infected by all patients with whom the nursing staff member has contact and the severity of the infection risk of each nursing staff member being infected by all other nursing staff with whom the nursing staff member has contact.

[0129] After determining the severity of the infection risk of each caregiver being infected by all patients with whom there is contact and the severity of the infection risk of each caregiver being infected by all other caregivers with whom there is contact through the above steps, for each caregiver, the infection risk assessment index of the caregiver being infected can be determined by combining the severity of the infection risk of the caregiver being infected by all patients and all other caregivers.

[0130] In an embodiment of the present invention, the infection risk assessment index of each nursing staff member is determined, and the implementation steps include:

[0131] Determine the cumulative sum of the severity of the infection risk of each nursing staff being infected by each patient with whom the nursing staff has contact, and obtain a first cumulative value;

[0132] Determine the cumulative sum of the severity of the infection risk of each caregiver being infected by each other caregiver with whom there is contact, to obtain a second cumulative value;

[0133] The normalized value of the sum of the first accumulated value and the second accumulated value corresponding to each nursing staff is used as the infection risk assessment index of each nursing staff.

[0134] For the above steps, since each nursing staff comes into contact with multiple patients and other nursing staff in the same time period, the cumulative value of the nursing staff's infection risk severity relative to all patients is determined to obtain a first cumulative sum, and the cumulative value of the nursing staff's infection risk severity relative to all other nursing staff is determined to obtain a second cumulative sum; and then the sum of the first cumulative value and the second cumulative value is normalized to obtain the infection risk assessment index of the nursing staff, and the corresponding calculation formula is:

[0135] ;

[0136] in, Indicates Infection risk assessment indicators for nursing staff to be infected, Indicates Caregivers have been exposed to infectious diseases of the type to be analyzed No. The severity of the risk of infection transmitted by each patient; I indicates the severity of the risk of infection transmitted by the first patient; The total number of patients with whom the caregiver had contact; Indicates The first caregiver to be exposed the severity of the risk of infection to other caregivers; Indicates The total number of other caregivers with whom the caregiver has contact; Represents the normalization function.

[0137] Step S500: performing an infection check on each nursing staff member according to the infection risk assessment index of each nursing staff member. The greater the value of the infection risk assessment index, the higher the frequency of the infection check.

[0138] By regularly checking nursing staff who may be infected and updating the infection risk assessment results of relevant nursing staff based on the inspection results, it is helpful to take relevant measures to achieve effective control of infectious diseases and prevent the further spread of pathogens. Since the larger the value of the infection risk assessment index of the nursing staff, the higher the possibility of the corresponding nursing staff being infected, therefore, according to the infection risk assessment index of each nursing staff, each nursing staff is inspected for infection, and the larger the value of the infection risk assessment index, the higher the frequency of infection inspection.

[0139] Further, in implementation, the infection risk assessment index of each nursing staff member is judged. If the infection risk assessment index is greater than or equal to the first severity threshold, the corresponding nursing staff is checked for infection according to the first set frequency. If the infection risk assessment index is less than the first severity threshold and greater than or equal to the second severity threshold, the corresponding nursing staff is checked for infection according to the second set frequency. If the infection risk assessment index is less than the second severity threshold, the corresponding nursing staff is checked for infection according to the third set frequency. The first set frequency is greater than the second set frequency, and the second set frequency is greater than the third set frequency. Among them, the first severity threshold and the second severity threshold, as well as the first set frequency, the second set frequency and the third set frequency can be reasonably set as needed. In the embodiment of the present invention, the value of the first severity threshold is set to 0.8, the value of the second severity threshold is set to 0.5, the value of the first set frequency is set to 1 time per day, the value of the second set frequency is set to 1 time every 3 days, and the value of the third set frequency is set to 1 time every 5 days.

[0140] For the convenience of observation, a network diagram can also be constructed, which includes nodes corresponding to all patients and nursing staff, connects the nodes with contact, and associates the infection risk assessment index of each nursing staff calculated above to the network diagram, and displays the constructed network diagram and the specific situation of the nursing staff's inspection in the form of a visual panel, and continuously updates these assessment results, and then classifies them according to the level of risk, so as to implement targeted prevention measures such as isolation, strengthening of health management or public education, and continuously adjust strategies through feedback loops to effectively control and reduce the spread of pathogens. Through this method, more targeted protective measures can be taken to avoid waste of resources caused by excessive protection, and protective measures can be adjusted according to the physical condition of medical staff to achieve the effect of optimizing resource allocation.

[0141] Based on the same inventive concept, the embodiment of the present invention also provides an infection risk assessment system for nursing, such as Figure 6As shown, the system includes: a memory 101, a processor 102, and a computer program 103 stored in the memory 101 and running on the processor 102, wherein when the processor 102 executes the computer program 103, the system can execute any one of the infection risk assessment methods for nursing introduced above.

[0142] The embodiment of the present invention can divide the system into functional modules according to the above method example. For example, each functional module can be corresponded to, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0143] Based on the same inventive concept, an embodiment of the present invention further provides a computer program product, which includes: a computer program code, which, when executed on a computer, enables the computer to execute any one of the infection risk assessment methods for nursing care described above.

[0144] Based on the same inventive concept, an embodiment of the present invention also provides a computer-readable storage medium, which stores a computer program code. When the computer program code runs on a computer, the computer executes any one of the infection risk assessment methods for nursing introduced above.

[0145] It should be noted that the above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for assessing infection risk in nursing, characterized in that: The following steps are involved: Obtaining relevant infection information of the infectious disease of the type to be analyzed, information on the severity of each patient suffering from the infectious disease, contact information between the patient and the caregiver, physical assessment susceptibility of each caregiver, and contact information between different caregivers; Determine the severity of the infection risk of each caregiver being infected by each patient with whom they have contact based on the relevant infection information, the severity of each patient's condition, the contact information between the patient and the caregiver, and the physical assessment susceptibility of each caregiver; Determine the severity of the infection risk of each caregiver being infected by each other caregiver with whom there is contact, based on the relevant infection information, the severity of the infection risk of each caregiver being infected by each patient with whom there is contact, the contact information between different caregivers, and the physical assessment susceptibility of each caregiver; Determine the infection risk assessment index of each nursing staff member by comprehensively considering the severity of the infection risk of each nursing staff member being infected by all the patients with whom the nursing staff member has contact and the severity of the infection risk of each nursing staff member being infected by all other nursing staff with whom the nursing staff member has contact; Determine the severity of each caregiver's risk of infection from each patient with whom they were exposed, including: Determine the risk level of each patient as a source of infection based on the relevant infection information and the severity of each patient's condition; Determine the infection probability of each caregiver being infected by each patient with whom they have contact based on the relevant infection information, the severity of each patient's condition, the contact information between each caregiver and each patient with whom they have contact, and the physical assessment susceptibility of each caregiver with whom they have contact; Determine the severity of the risk of infection of each caregiver being infected by each patient with whom each caregiver has contact, based on the risk level of each patient with whom each caregiver has contact as a source of infection and the probability of infection of each caregiver being infected by each patient with whom each caregiver has contact; The relevant infection information at least includes the actual number of patients and the number of confirmed cases by routine tests obtained from big data, the actual number of patients and the number of confirmed cases by routine tests obtained from test data, and the average number of infected persons of the infectious disease. The severity information at least includes the severity index value, and determines the risk level of each patient as a source of infection, including: Determine the degree to which the infectious disease is difficult to detect based on the actual number of patients and the number of confirmed cases by conventional tests obtained from big data, and the actual number of patients and the number of confirmed cases by conventional tests obtained from test data; The risk level of each patient as a source of infection is determined by integrating the degree of difficulty in detection, the average number of infected persons, and the severity index value of each patient; The relevant infection information also includes the transmission route and the transmission probability under each transmission route, and the contact information includes the contact duration and contact frequency under each transmission route. The infection probability of each caregiver being infected by each patient with whom there is contact is determined, including: Determine the contact intensity between each caregiver and each patient in contact with each caregiver under each transmission route based on the contact duration and frequency between each caregiver and each patient in contact with each caregiver under each transmission route; According to the transmission probability under each transmission route and the contact intensity between each caregiver and each patient with whom he / she has contact under each transmission route, the infection probability of each caregiver under each transmission route relative to each patient with whom he / she has contact is determined; According to the severity index value of each patient who has contact with each caregiver, and the contact intensity between each caregiver and each patient who has contact with each caregiver under each transmission route, the physical assessment susceptibility of each caregiver is corrected to obtain the corrected physical assessment susceptibility of each caregiver under each transmission route; The modified physical susceptibility is used to modify the infection probability of each caregiver relative to each patient with whom they have contact under various transmission routes, and the infection probability of each caregiver being infected by each patient with whom they have contact is obtained.

2. A method for assessing infection risk in nursing care according to claim 1, characterized in that: Determine the risk of each patient as a source of infection, including: Normalizing the average number of infected persons to obtain an infected person index; Determine the risk level of the infectious disease to be analyzed by combining the number of infected people indicator and the difficulty of detection; The risk level of each patient as a source of infection is determined by combining the risk level of the infectious disease and the severity index value of each patient's condition.

3. The infection risk assessment method for nursing according to claim 1, characterized in that: Determine the severity of each caregiver’s risk of infection from each other caregiver with whom there was contact, including: Taking each patient as a target patient, different levels of nursing staff are determined according to the contact between each target patient and different nursing staff, and between different nursing staff; Determine the first nursing staff and the second nursing staff. Among nursing staff at the same level, the two nursing staff who are in contact are respectively regarded as the first nursing staff and the second nursing staff. Among nursing staff at adjacent levels, the nursing staff at the previous level who are in contact are regarded as the first nursing staff, and the nursing staff at the next level are regarded as the second nursing staff. Determine the contact objects of the first nursing staff. Among nursing staff at the same level, the contact objects include: patients or nursing staff at the level above the first nursing staff; among nursing staff at adjacent levels, the contact objects include: patients and other nursing staff at the same level as the first nursing staff, or nursing staff at the level above the first nursing staff and other nursing staff at the same level as the first nursing staff; For the target patient, determining the severity of the infection risk of the second caregiver being infected by the first caregiver with whom there is contact, based on the relevant infection information, the severity of the infection risk of the first caregiver being infected by the contacted object, the contact information between the first caregiver and the second caregiver, and the physical assessment susceptibility of the second caregiver; For all patients, the severity of the infection risk of each caregiver being infected by the same other caregiver with whom there was contact is combined to determine the severity of the infection risk of each caregiver being infected by each other caregiver with whom there was contact.

4. The infection risk assessment method for nursing according to claim 1, characterized in that: Determine each caregiver's infection risk assessment indicators, including: Determine the cumulative sum of the severity of the infection risk of each nursing staff being infected by each patient with whom the nursing staff has contact, and obtain a first cumulative value; Determine the cumulative sum of the severity of the infection risk of each caregiver being infected by each other caregiver with whom there is contact, to obtain a second cumulative value; The normalized value of the sum of the first accumulated value and the second accumulated value corresponding to each nursing staff is used as the infection risk assessment index of each nursing staff.

5. The infection risk assessment method for nursing according to claim 1, characterized in that: The method further includes: According to the infection risk assessment index of each nursing staff, an infection check is performed on each nursing staff. The greater the value of the infection risk assessment index, the higher the frequency of infection checks on the nursing staff.

6. A method for assessing infection risk in nursing care according to claim 5, characterized in that: Conduct infection screening on each caregiver, including: The infection risk assessment index of each nursing staff is judged. If the infection risk assessment index is greater than or equal to the first severity threshold, the corresponding nursing staff is checked for infection at a first set frequency. If the infection risk assessment index is less than the first severity threshold and greater than or equal to the second severity threshold, the corresponding nursing staff is checked for infection at a second set frequency. If the infection risk assessment index is less than the second severity threshold, the corresponding nursing staff is checked for infection at a third set frequency. The first set frequency is greater than the second set frequency, and the second set frequency is greater than the third set frequency.

7. An infection risk assessment system for nursing, characterized in that: It comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of an infection risk assessment method for nursing care as described in any one of claims 1 to 6 are implemented.

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