This invention relates to the field of medical
data processing technology, specifically to a diagnostic method for
postmenopausal osteoporosis (PMOP) based on oral salivary
bacteria. The method includes: collecting
saliva samples from the subject in the
morning on an empty
stomach and labeling the subject's menopausal years; obtaining the relative abundance of
Lactobacillus and
Streptococcus, the concentrations of propionic acid and
acetic acid, and the pH value; determining the corrected
bone mineral density (BMD) correlation value using a
diagnostic model; and outputting suggestions based on the BMD correlation value. This invention utilizes the principle that the decline in
estrogen levels in
postmenopausal women leads to an imbalance in the salivary
flora, with an increase in acid-producing
bacteria leading to increased
acetic acid secretion and a decrease in alkali-producing
bacteria leading to decreased propionic acid
secretion. These two factors synergistically exacerbate osteogenic inhibition and increased
bone resorption. Furthermore, since most
saliva is partially absorbed after
swallowing, the long-term accumulation of propionic acid and
acetic acid can interfere with bone
metabolism through the
circulatory system, thus providing a
preliminary diagnosis of PMOP. By collecting only
saliva samples, without
blood collection or
radiation, the procedure is simple, painless, and provides physicians with preliminary diagnostic suggestions.