Investigation and analysis of incidence of osteoporosis for 9735 cases of bone mineral density population in Jilin city region

Objective To investigate bone mineral density(BMD) of 9735 cases of healthy people and analyze their peak bone mass, the change rule of BMD as well as in Jilin city region the incidence of osteoporosis. Method Used OSTEOCORE-2 dual-energy X-ray absorptiometry detector of MEDILINK French company detecting patients' BMD of the stress lateral forearm foot radius distal 1/3. Divided patients into different groups by gender and age with 5-year-old difference. Used SPSS 16.0 software to analyze bone density variation, peak bone mass and the incidence of osteoporosis. Result Peak bone mass of Jilin city region appeared at age 30 ~ 39 years old, male peak bone mass was(0.6271±0.04791) g/cm2, female peak bone mass was(0.5169±0.04584) g/cm2. BMD loss rate: after the age of 50 female began to lose BMD, while BMD loss rate of male after a 60-year-old began to increase. The incidence of osteoporosis: after the age of 50 female had high incidence of osteoporosis, while male got significantly high incidence of osteoporosis at the age after 70-year-old. The morbidity of female was higher than male, and the differences between two groups were significant(P 0.05). Conclusion Peak bone mass of both female and male in Jilin city region appeare at the age of 30 ~ 39 years old, BMD loss rate and the morbidity of osteoporosis are quite different among different age and gender.