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目的通过对使用DTX-200骨密度仪进行前臂尺桡骨骨密度人群调查资料的统计分析,获得鄂西北地区本地人群的骨密度(BMD)正常值及骨质疏松患病率,并对资料的年龄组分布特点进行分析。方法采用美国Osteometer MediTech公司的DTX-200骨密度仪,对鄂西北地区的本地籍人群1957人(男性959人,女性998人)进行前臂尺桡骨远端的BMD检查,按年龄组进行平均值和标准差的计算,根据30～39岁年龄组计算男女骨峰值。结果①男性前臂远端骨峰值为(0.572±0.037)g/cm2;女性为(0.502±0.041)g/cm2。男女BMD均在30～39岁组达到高峰。②各年龄组均值显示:女性15～19岁组BMD达到峰值的93%,而男性15～19岁组只达到79%;女性60～69岁组BMD降到峰值的76%,而男性降到88%;20岁以前,男女BMD差别较小;在达到峰值的年龄组,男女BMD差别较大。结论①按30～39岁年龄组统计计算骨峰值比较合理。②20岁以前女性比男性BMD增加的快一些;而中老年以后女性BMD降低得也更早、更快。③骨密度达到峰值以后随着年龄的增长而下降,骨质疏松(OP)发病率也随之增加,同年龄组女性骨质疏松发病率明显高于男性。
Objective To obtain the normal BMD and the prevalence of osteoporosis of the local population in Northwest Hubei Province through statistical analysis of population data of the ulnar radius of the forearm using the DTX-200 bone densitometer. The data of the age Group distribution characteristics for analysis. Methods 1957 natives (959 males and 998 females) in northwestern Hubei Province were examined by BMD of the distal radius and ulna in the forearm using the DTX-200 bone densitometer of Osteometer MediTech in the United States. The average and Standard deviation calculation, according to 30 to 39 age group calculation of men and women bone peak. Results ① The distal peak of the forearm in the male was (0.572 ± 0.037) g / cm2 and the female was (0.502 ± 0.041) g / cm2. BMD in both men and women peaked in the 30- to 39-year-old group. (2) The mean of all age groups showed that the BMD in women aged 15-19 years reached 93% of the peak, while that in men aged 15-19 years only reached 79%. The BMD in women aged 60-69 decreased to 76% 88%. Before age 20, there was a small difference between men and women in BMD. In the peak age group, BMD differed greatly between men and women. Conclusion ① It is reasonable to calculate the peak value of bone by the age group of 30-39 years. ② Before the age of 20 women than men, BMD increased faster; while women in the middle-aged and older to reduce BMD earlier, faster. ③ After the BMD peaked, the incidence of osteoporosis (OP) increased with age. The incidence of osteoporosis in women of the same age group was significantly higher than that of the male.