| Objective To understand the prevalence and influencing factors of abnormal bone density in physical examination population in Weifang between 2010-2021, and to provide basis for the prevention and treatment of low bone mass and osteoporosis in this area. Methods DXA bone densitometer was used to measure the bone mineral density (BMD) of 15,180 male and postmenopausal women aged 50 years and above in Weifang area from 2010 to 2021, and a questionnaire survey was conducted. The influencing factors of low bone mass and osteoporosis, such as gender, age, body mass index, history of fractures, family history of fractures, fertility number, years of menstruation span, menopause age, years of smoking, long-term drinking, strong tea intaking, milk intaking, sports, calcium intaking and vitamin D intaking were Analyzed. Results ①The BMD abnormality rate of the general population in this study is 42.22%, of which the OP rate is 15.68%. The prevalence of abnormal BMD in men was 25.21%, which in postmenopausal women was 58.62%; the prevalence of OP in men was 6.07%, which in postmenopausal women was 24.95%. The BMD abnormality and OP prevalence rate of men and postmenopausal women increased with age, and the prevalence rate of men in all age groups was lower than that of postmenopausal women, the difference was statistically significant. Among them, the highest BMD abnormality rate was in the age group of 70-79 years old (32.96%), and the highest prevalence rate of OP was in the age group ≥ 80 years old (13.61%); The highest rates of BMD abnormality and OP in women were 77.47% and 43.96% in the group ≥ 80 years old. ②For men ≥ 50 years old, body mass index and regular exercise are protective factors for abnormal BMD; Fracture history, smoking age and taking calcium tablets regularly were the risk factors. Body mass index and family fracture history were positively correlated with T value, while smoking age, regular intake of VITD and regular drinking were negatively correlated with T score（P＜0.05）.③For postmenopausal women, body mass index, menopausal age, years of menopause, regular milk drinking are protective factors of abnormal BMD;while age, fracture history and number of births are risk factors. Body mass index, years of menopause, menopausal age, and regular milk consumption were positively correlated with T score, while age, fracture history, and fertility were negatively correlated with T score（P＜0.01）. Conclusion The prevalence of low bone mass and osteoporosis in the physical examination population in Weifang is lower than the national level, and the factors such as age, gender, living habits, dietary, female menstruation and fertility, fracture history and family fracture history have certain influence on bone mineral density change. |