Bone minerd density of adult people in Lanzhou area

Objective Through analyzing changes in bone mineral density (BMD) and prevalence rate of osteoporosis of adult people in Lanzhou,to obtain scientific basis for prevention and diagnosis of osteoporosis. Methods 996 people were recruited at random from people over 20 years old who lived in Lanzhou city for a long time. BMD of L 1 4 was examined by QCT, and values of BMD were statisitcally analyzed. Results The BMD of lumbar spines decreased with age. The BMD of males was higher than that of females of the same age. The prevalence rate of osteoporosis increased with age, especailly in the 50 year old group of females. The prevalence rate of osteoporosis in Lanzhou is higher than that in Beijing. Conclusion The people in Lanzhou need more outdoor exercises and should drink milk every day. The knowledge of osteoporosis prevention should be spread, especially for over 50 years old females.