Abstract:

Abstract:Objective
To explore the relative factors of low bone mineral density in old women in order to provide a theoretical basis for early prevention and treatment for osteoporosis in old women. Methods Using dual-energy    X-ray   absorptiometry (DEXA),the ulna and radius bone mineral densities of 915 old women who were 60-74 year-old women retired workers of China First Automobile Works were determined. Questionnaire was divided into age,the intakes of rice,coarse food grain,marine products,milk,acidophilous milk,coffee,bean milk,flour,eggs,fruit,whether smoking or not,whether drinking or not and years of menopause,the body height and the body weight were measured at the same time. Results Age,whether take in flour,eggs and fruit frequently,whether smoking or not,postmenopausal years and body mass index(BMI) were correlated with bone mineral density(P<0.05);multiple gradual regressive analysis demonstrated that  the age was negatively correlated with bone mineral density(B=－0.440,P<0.05),the postmenopausal year  was negatively correlated with bone mineral density(B=－0.314,P<0.05),smoking was negatively correlated with bone mineral density(B=－0.650,P<0.05). BMI was positively correlated with bone mineral density(B=0.959,P<0.05).Conclusion Old age,long post-menopausal years,low BMI,and smoking are relative factors of primary osteoporosis in old women aged 60-74 years.

Key words: osteoporosis, bone mineral density, menopause