目的 研究骨矿总量与颈围、体质量、体质量指数(body mass index,BMI)及瘦组织总量、脂肪总量之间的关系.方法 本研究纳入“甲状腺疾病和糖尿病全国调查-2014”山西省部分受试者,包括男性83人,年龄(47.11±17.23)岁;绝经前女性65人,年龄(32.35±10.18)岁;行骨密度及人体成分检测,回顾性分析骨矿总量、骨密度与颈围、体质量、BMI及脂肪总量、瘦组织总量之间的关系.结果 Pearson相关性检验显示颈围与BMI、体质量、脂肪总量及瘦组织总量之间均呈显著正相关性(男性组分别为r=0.767,P＜0.05;r=0.723,P＜0.05;r=0.642,P＜0.05;r=0.598,P＜0.05;女性组分别为r=0.845,P＜0.05;r=0.848,P＜0.05;r=0.776,P＜0.05;r=0.771,P＜0.05);骨矿总量与颈围、BMI、体质量、脂肪总量、瘦组织总量之间具有显著的正相关性(男性组分别为r=0.277,P＜0.05;r=0.372,P＜0.05;r=0.647,P＜0.05;r=0.319,P＜0.05;r=0.726,P＜0.05;女性组分别为r=0.359,P＜0.05;r=0.353,P＜0.05;r=0.509,P＜0.05;r=0.319,P＜0.05;r=0.545,P＜0.05).全髋骨密度与颈围、BMI呈显著的正相关(男性组分别为r=0.287,P＜0.05;r=0.353,P＜0.05;女性组分别为r=0.336,P＜0.05;r=0.383,P＜0.05).多元线性回归方程得出颈围与骨矿总量之间的关系转变为负相关关系(男性组标准化β=-0.401,P＜0.05;女性组标准化β=-0.292,P＜0.05);BMI与骨矿总量之间也转变为负相关关系(男性组标准化β=-0.565,P＜0.05;女性组标准化β=-0.237,P＜0.05);颈围与全髋骨密度之间也显示出负相关关系(男性组标准化β=-0.400,P＜0.05;女性组标准化β=-0.369,P＜0.05).结论 BMI及颈围可用于肥胖的初步预测;两者虽不能准确反映骨矿总量的确切值,但此两个指标与骨矿总量之间的相关性表明,它们亦可应用于对骨矿总量的初步预测及了解.%Objective To investigate the association among bone mineral content (BMC),neck circumstance (NC) and other body composition components.Methods A total of 148 subjects were recruited in this study,including 83 male and 65 premenopausal female.In order to avoid the influence of the enlarged thyroid on the NC,the ultrasound examination was received to ensure the normal volume of the thyroid.Total-body BMC and BMD and body composition were measured by dual energy X-ray absorptiometry (DXA).Results Pearson correlation tests showed that the positive correlation existed between NC and BMI,body weight,total fat mass,and total lean mass correlation (in male group:r =0.767,P＜0.05;r=0.723,P＜0.05;r=0.642,P＜0.05;r=0.598,P＜0.05;in female group:r=0.845,P＜0.05;r =0.848,P＜0.05;r =0.776,P＜0.05;r =0.771,P＜0.05,respectively).Furthermore,the positive correlation was also found between BMC and NC,BMI,body weight,total fat mass and total lean mass (in male group:r =0.277,P＜0.05;r=0.372,P＜0.05;r=0.647,P＜0.05;r=0.319,P＜0.05;r=0.726,P＜0.05;in female group:r=0.359,P＜0.05;r=0.353,P＜0.05;r=0.509,P＜0.05;r=0.319,P＜0.05;r=0.545,P＜0.05,respectively).Interestingly,multivariable line regression showed that NC or BMI was negatively correlated to BMC (NC:male group standardβ=-0.401,P＜0.05;female group standardβ=-0.237,P＜0.05;BMI:male group standardβ=-0.565,P＜0.05;female group standard β=-0.292,P＜0.05),after adjusted for weight and age.Total hip bone mineral density was also negatively correlated to NC (in male group:standardβ=-0.400,P＜0.05;in female group:standardβ=-0.369,P＜0.05).Conclusion NC and BMI are meaningful for predicting not only obesity but also BMC in some extent,although they can not accurately reflect the detail value of BMC.
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