应用简易体脂参数估测中国肥胖人群腹腔内及腹壁皮下脂肪面积

目的：探讨简易体脂参数与腹壁皮下(SA)及腹腔内脂肪含量(VA)的关系，并且用年龄、简易体脂参数来建立预测SA及VA的方程。方法：应用计算机断层扫描对309例志愿受试者(男88例，女221例)在腰椎4、5间隙水平进行SA及VA的测量，同时测量其体重(W)、身高(H)、体重指数(BMI)、腰围(WC)、腹围(AC)、臀围(HC)以及腰臀比(WHR)。随机抽取80％的受试者(259例，其中男性78例，女性181例)通过多元逐步回归分析，分别以SA及VA为因变量，年龄、W、H、BMI、WC、AC、HC以及WHR为自变量，建立回归方程，用剩余的20％受试者(50例，其中男性10例，女性40例)对回归方程进行回代验证。结果：在男性，预测SA和VA的回归方程中均包含了WC和年龄；在女性，预测SA的回归方程中包含了AC和BMI，预测VA的回归方程中包含了WHR、W和年龄。在回代验证中，VA的预测值与测量值之间的平均差异在男、女性分别为-7．83％和-6．94％；SA的预测值与测量值之间的平均差异在男、女性分别为8．01％和O．69％，预测值与测量值之间的吻合程度较好。结论：SA及VA可以通过年龄与简易体脂参数来预测。

Estimate of Human Visceral Adipose Area and Abdominal Subcutaneous Adipose Area in Obese Chinese by Simple Anthropometric Parameters

Objective To explore the relationship of simple anthropometric parameters with abdominal subcutaneous adipose area (SA) with visceral adipose area (VA), and to generate equations predicting SA and VA by simple anthropometric parameters. Methods SA and VA were measured with computed tomography (CT) in 309 human subjects (male 88, female 221). Weight (W), height (H), body mass index (BMI), waist circumference (WC), abdominal circumference (AC), hip circumference (HC) and waist to hip ratio (WHR) were also measured. Multiple stepwise regression analysis was used to generate equations for predicting SA and VA from age and simple anthropometric parameters of 259 subjects (80%, including 181 women and 78 men) randomly selected from the overall sample. These equations were then cross-validated in the remaining 50 subjects (20%, including 40 women and 10 men). Results The best regression equations for male were developed for predicting SA and VA , and the explanatory variables included WC and age. In women, the equation for predicting SA included AC and BMI; the equation for predicting VA included WHR and W and age. In the cross-validation study, the differences between predicted and observed values of VA in men and women were -7 83% and -6 94%, respectively; the differences between predicted and observed values of SA in men and women were 8.01% and 0 69%, respectively. The goodness of fit between predicted and observed values is good. Conclusion The absolute amount of human VA and SA in obese Chinese can be predicted from anthropometric measurements.