CAJ | 학술논문

目的体重在双能X线吸收法( dual-energy X-ray absorptiometry,DXA)诊断骨质疏松症方面有重要作用,由于季节不同穿着衣物重量的差异,可能对体重的结果有影响,本研究回顾性分析应用DXA测量人体质量与自测体重之间的差异. 方法观察200例样本,以体重与体质量的差值(difference of body weight and body mass,DBWM)为主要观察指标,体质量通过DXA测量人体全身获得,体重通过体重秤直接测量,分析季节、性别因素对DBWM的影响. 结果测量的体重明显大于体质量( t=8.432,P=6.846 ×10 -15);体重与体质量在夏季基本一致(t=-0.376,P=0.712);DBWM在不同季节有不同分布(F=3.662,P=0.013),夏季与其余季节比较均有明显差异(与春季、秋季、冬季比较分别为:P=0.003、P=0.013、P=0.002);DBWM的分布与性别无关(t=0.554,P=0.581);剔除15例奇异值样本之后,体重与体质量的差异仍存在( t=14.282,P=4.951 ×10-151 ). 结论 ①直接测量的体重明显大于DXA测量的体质量,不同季节对体重与体质量的差异有影响,由于夏季穿着衣物较少,对体重的影响也较小,建议在测量体重时穿着较少的衣物,或者扣除衣物的重量. ②对于无法直接测量体重的样本,建议用DXA测量全身从而获得更准确的体质量.
목적 체중재쌍능X선흡수법( dual-energy X-ray absorptiometry,DXA)진단골질소송증방면유중요작용,유우계절불동천착의물중량적차이,가능대체중적결과유영향,본연구회고성분석응용DXA측량인체질량여자측체중지간적차이. 방법관찰200례양본,이체중여체질량적차치(difference of body weight and body mass,DBWM)위주요관찰지표,체질량통과DXA측량인체전신획득,체중통과체중칭직접측량,분석계절、성별인소대DBWM적영향. 결과 측량적체중명현대우체질량( t=8.432,P=6.846 ×10 -15);체중여체질량재하계기본일치(t=-0.376,P=0.712);DBWM재불동계절유불동분포(F=3.662,P=0.013),하계여기여계절비교균유명현차이(여춘계、추계、동계비교분별위:P=0.003、P=0.013、P=0.002);DBWM적분포여성별무관(t=0.554,P=0.581);척제15례기이치양본지후,체중여체질량적차이잉존재( t=14.282,P=4.951 ×10-151 ). 결론 ①직접측량적체중명현대우DXA측량적체질량,불동계절대체중여체질량적차이유영향,유우하계천착의물교소,대체중적영향야교소,건의재측량체중시천착교소적의물,혹자구제의물적중량. ②대우무법직접측량체중적양본,건의용DXA측량전신종이획득경준학적체질량.
Objective Weight plays an important role in the diagnosis of osteoporosis using dual-energy X-ray absorptiometry ( DXA) .The weight of different dress during different season may affect the measurement.This study retrospectively analyzes the differences between DXA measurement of body mass and self-test body weight.Methods The difference of body weight and body mass ( DBWM) of 200 cases was observed to analyze seasonal and gender factors on DBWM impact.Body mass was measured using DXA and body weight was obtained by direct measurement using weight scales.Results Body weight measured was significantly greater than body mass ( t=8.432, P=6.846 ×10 -15 ) .Weight and body mass in the summer were consistent ( t=-0.376, P=0.712).DBWM in different seasons had different distribution (F=3.662, P=0.013).DBWM in the summer was significantly different comparing to that in the rest seasons (P=0.003, 0.013, and 0.002 comparing to that in the spring, autumn, and winter, respectively).DBWM distribution was unrelated to gender (t=0.554, P=0.581).The difference between weight and body mass still existed after excluding 15 extreme cases ( t=14.282 P=4.951 ×10 -151 ) .Conclusion 1 ) The value of body weight obtained by direct measurement using weight scales is significantly greater than that of body mass measured by DXA. DBWM is different in different seasons.The effect on weight in the summer is less due to less wearing.It is recommended that dress less or deduct weight of the cloth when measuring body weight.2) It is recommended to use DXA measurement of body mass for those whose body weight cannot be measured directly.