昆明地区人体桡尺骨骨密度变化生理规律探讨

Analysis of physiological regularity of bone mineral density in ulna and radius of population in Kunming region

分析昆明地区２８２０例１～８０岁健康人桡尺骨骨密度（ＢＭＤ），发现ＢＭＤ随年龄的变化规律为：３０岁前上升，３０～３９岁达高峰（男０７５５±０１０１、女０６７８±００６７），４０岁后下降，年均增骨率及骨峰值男＞女、年均失骨率女＞男，差异均非常显著。青春期ＢＭＤ上升最快，女早男２年。妇女绝经５～１０年间失骨加速，是此前的７倍，男性失骨缓慢，７５岁后有所加快。累积４０年总失骨率男１７４８％、女３４０７％，５０岁以上中老年骨质疏松患病率男４２１％、女２６１９％（１∶６２２）。本组男女骨峰值与全国十三省市平均值相近而高于多数北方组，后者与昆明的地理环境因素有关。

The changes of regularity with age of bone mineral density (BMD) in ulna and radius of 2820 subjects aged 1-80 years in Kunming region were assesssed The peak values of BMD for both male and female were in 30-39 years old The average rise rate per year and peak value of BMD in male were more than that in female, and average loss rate of BMD per year in male was lower than that in female The total loss rate of BMD on 40 years was 17 48% in male, and 34 07% in female In over 50 years old subjects, the incidence of osteoporosis was 4 21% in male and 26 19% in female