Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

43 results about "Odds ratio" patented technology

An odds ratio (OR) is a statistic that quantifies the strength of the association between two events, A and B. The odds ratio is defined as the ratio of the odds of A in the presence of B and the odds of A in the absence of B, or equivalently (due to symmetry), the ratio of the odds of B in the presence of A and the odds of B in the absence of A. Two events are independent if and only if the OR equals 1: the odds of one event are the same in either the presence or absence of the other event. If the OR is greater than 1, then A and B are associated (correlated) in the sense that, compared to the absence of B, the presence of B raises the odds of A, and symmetrically the presence of A raises the odds of B. Conversely, if the OR is less than 1, then A and B are negatively correlated, and the presence of one event reduces the odds of the other event.

Methods of determining acute myeloid leukemia response to treatment with farnesyltransferase

We analyzed bone marrow from 67 patients from a phase 2 study of farnesyltransferase inhibition with tipifarnib (R115777, ZARNESTRA®), in older adults with previously untreated, poor-risk acute myeloid leukemia (AML) for N-Ras mutations, global gene expression, and/or quantitative PCR (qPCR) of specific genes. Microarray profiling identified a two-gene expression ratio (RASGRP1:APTX) which provided the greatest accuracy for predicting response to tipifarnib. We demonstrated that this classifier could predict response to tipifarnib in an independent set of 54 samples from relapsed or refractory AML, with a NPV and PPV of 92% and 28%, respectively (odds ratio of 4.4). Therefore, in both newly diagnosed and relapsed or refractory AML, this classifier improves the overall response rate by approximately 50% while maintaining a high NPV, and significantly improves patient overall survival. The two-gene classifier was also validated by qPCR in thirty AML samples from the same clinical study demonstrating a negative predictive value (NPV) and positive predictive value (PPV) of 81% and 50%, respectively (odds ratio of 4.3). These data indicate that a simple two-gene expression assay may have utility in diagnosing a population of AML patients who are more likely to respond to tipifarnib.
Owner:JANSSEN DIAGNOSTICS LLC

Online loss calculation method for modular multilevel converter

The invention discloses an online loss calculation method for a modular multilevel converter (MMC), and belongs to the field of power transmission and distribution. The method comprises the following steps of: 1) calculating the conduction loss of two insulated gate bipolar transistors (LGBT) and two flywheel diodes in each sub-module (SM); 2) calculating the switching loss of the two IGBTs and the reverse recovery loss of the two flywheel diodes in each SM; and 3) calculating related loss by using a loss calculation module. The method has the advantages that: 1, the complexity of manual measurement and calculation is effectively avoided when the MMC has a great number of modules, workload is greatly reduced, and the method is fast and convenient; 2, the online calculation of the loss of the MMC is realized, and the method is wide in application range, and can be applied to the loss calculation of an MMC system in any operating state; and 3, modular packaging is facilitated, a floor area is saved, the utilization rate of resources is increased, and the output of a platform comprises various kinds of loss and loss ratios, so that the method is direct and clear, and staff can conveniently observe the running state of the system at any time.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Construction method and construction system for type 2 diabetes mellitus risk assessment model

The invention discloses a construction method and a construction system for a type 2 diabetes mellitus risk assessment model. The method comprises the following steps that: (1) selecting an SNP (Single Nucleotide Polymorphisms) locus related to type 2 diabetes mellitus; (2) calculating the risk degree, i.e., an OR (Odds Ratio) value, of the SNP locus; (3) calculating the frequency of the SNP locus in an East Asia population; (4) calculating the epidemiology prevalence rate of the type 2 diabetes mellitus; and (5) according to a Bayesian algorithm and a Hardy-Weinberg equilibrium principle, constructing the risk assessment model. The model of the invention calculates the mathematical expectation value and the OR value of the risk allele amount of the population, the epidemiology prevalence rate of the type 2 diabetes mellitus is combined to obtain the average prevalence rate and the confidence interval of a group on the basis of inheritance, a new construction method for the type 2 diabetes mellitus risk assessment model is provided, so that the prevalence risk of the type 2 diabetes mellitus more approaches to a true situation, and a result is more scientific and reasonable. By use of the method, high-risk population screening accuracy is improved, the prevalence rate of the type 2 diabetes mellitus is expected to be lowered, and a great quantity of expenditures can be saved for the nation and society so as to benefit the nation and the people.
Owner:云健康基因科技(上海)有限公司

Liver cancer prediction system for early detection and control method thereof

The present invention relates to a liver cancer prediction system for early detection and control method thereof, which can perform hierarchical classification relating to a risk group for hepatocellular carcinoma, through an estimation of the incidence rate for the hepatocellular carcinoma and a relative risk of the incidence of hepatocellular carcinoma, both of which are found on an individual basis. General information on a patient, information depending on an ultrasonic test performed, clinical information including information on findings upon a first registration of a patient and information on findings upon a diagnosis of liver cancer, and information on a risk group, are stored in a database. A regression count which is an attributable ratio corresponding to each of risk factors is calculated based on the clinical information and risk group information stored in the database. An odds ratio of the incidence of liver cancer is measured by calculating risk probability of the incidence of liver cancer through a given operation process using the calculated regression count. It is thus possible to prevent the incidence of liver cancer per person depending on prediction of the incidence of liver cancer. Also hierarchical classification relating to a risk group for hepatocellular carcinomas is performed through the incidence rate for hepatocellular carcinoma and a relative risk of the incidence of liver cancer that are calculated on an individual basis. Therefore, a tailored model for prediction the incidence of liver cancer can be constructed.
Owner:KIM DONG KEE

Method for predicting re-pregnant vaginal birth after cesarean delivery

The invention relates to a method for predicting re-pregnant vaginal birth after cesarean delivery. The method comprises the following steps: S1: collecting a large number of clinical data of pregnant and lying-in women experiencing re-pregnant trial vaginal birth after cesarean delivery; S2: comparing the clinical data of two groups of pregnant and lying-in women, screening independent influence factors for influencing successful re-pregnant trial vaginal birth after cesarean delivery, and calculating an odds ratio (OR) of each influence factor; S3: grading and classifying the independent influence factors, scoring the obtained odds ratios (OR) in combination with Logistic regression analysis so as to establish a predictive scoring table used before the re-pregnant vaginal birth after cesarean delivery; S4: according to the predictive scoring table, scoring the collected independent influence factors of each pregnant and lying-in woman, calculating a total score value, and drawing the total score values of all the pregnant and lying-in women into an ROC (receiver operating characteristic) curve to obtain an optimal critical score value, namely a cut-off point, wherein the cut-off point is a critical score value for judging whether a pregnant woman can accomplish the vaginal birth. By the method, a safe and feasible before-birth predictive scoring model for VBAC (vaginal birth after cesarean delivery) is established.
Owner:福建省妇幼保健院

Method and system for calculating head-to-body ratio generated by virtual image

The invention relates to a method for calculating a head-to-body ratio generated by a virtual image. According to the method, a depth map and two color images (one is a low-definition ILD image and the other is a high-definition Ihd image, wherein the low-definition image is registered with the depth map) are obtained. The method for obtaining the ratio of the distance of the outer canthus of a human body to the height of the human body comprises the following steps of calibrating the focal length f of a high-definition camera in the direction of the double-eye connecting line; extracting thefeature point lld of a human face in the low-definition image; extracting the feature point lhd of the human face in the high-definition image; extracting the average depth ddepth of the two eyes in the depth map, so as to obtain the feature points lld of two eye positions; calculating the pixel euclidean distance dpixel between the feature points of two outer canthus in the human face in the high-definition image lhd; calculating the physical distance dphysics between the two outer canthus; and calculating the ratio alpha of the distance between the two outer canthus to the height of the human body. The method is fast in image acquisition speed and can quickly complete the human body five-sense measurement. In addition, during the image acquisition process, no radioactive substance is generated, so that the method is harmless to the human body. Meanwhile, the human body does not need to be in the naked state or worn in the approximately naked way. Therefore, the privacy of the human body is protected. The collection and the measurement do not need to be completed in a closed environment, so that the dimension space is saved. The method is beneficial to the mental states of measured people.
Owner:深圳市云之梦科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products