Investigation Report on Bone Mineral Density in 7533 Women of Han Nationalities in Changchun

Objective To investigate peak bone mineral density and regularity of changes of bone mineral density in women,BMD of 7 533 women in Changchun were measured.Methods The BMD at the distal one-third of Radius and ulna of non-dominant arm were determined by DTX-200 BMD detector made by American Osteometer Medi Tech Corporation.7 533 objects were divided into different groups on the basis of each-5 year-old.The data were analyzed using spss13.0.Results The peak bone mineral density appeared in the 30-34 age group.while BMD showed a gradual decline after 40 years.BMD decreased quickly in menopause.prevalence of osteoporosis was 6.97% in the 50-59 age group,35.97% in 60-69,59.55% in 70-79,and 75.56% in 80-89.Conclusion Osteoporosis in women is closely related to menopause and prevalence of osteoporosis increases after 60 yeas.There is significant difference in different age groups P0.01.