The analysis on the related factors of bone mass density and the detectable rate of osteoporosis in the middle aged and elderly female

Objective:To explore the variation regularity and influence factors of bone mass density(BMD) of lumbar spine and hip in middle aged and elderly female,and the effects of different measurement sites on the diagnosis of osteoporosis,then provide the scientific reference for diagnosing and prevention osteoporosis.Methods:297 middle aged and elderly female were sampled randomly from the cases who were examined in the bone mass density measurement department of The Second Affiliated Hospital of Nanchang University,The BMD of lumbar spine(L2-L4),femoral neck,Ward's triangle and great trochanter was measured by Dual Energy X-ray Absorptiometer(DEXA).Then all data were analyzed by SPSS.Results:BMD values of all sites decreased with the increasing of age,and the Ward's triangle declined most obviously.There were significant difference(P0.01)in BMD values of hip between low BMI groupand high BMI group.The BMD values of lumbar spine(L2-L4) had positive correlation with stature and body mass index(BMI)(P0.05)and the BMD values of all sites of hip had positive correlation(P0.01)with stature,body weight and BMI.The detectable rate of osteoporosis was the highest in lumbar spine,and then in Ward′s triangle.Conclusions:BMD values of all sites decrease with increasing of age,hip BMD values had positive correlation with stature,body weight and body mass index,and the sensitive sites of diagnosis osteoporosis were lumbar spine and Ward′s triangle.