Civil Aviation Medicine Centre, Civil Aviation Administration of China, Chaoyang District, Beijing, China.
PLoS One. 2011;6(5):e19835. doi: 10.1371/journal.pone.0019835. Epub 2011 May 19.
The purpose of this cross-sectional observational study was to identify ethnic differences in body composition and obesity-related risk factors between Chinese and white males living in China. 115 Chinese and 114 white male pilots aged 28-63 years were recruited. Fasting body weight, height and blood pressure were measured following standard procedures. Whole-body and segmental body composition were measured using an 8-contact electrode bioimpedance analysis (BIA) system. Fasting serum glucose, fasting plasma total cholesterol (TC), high-density lipoprotein (HDL) cholesterol, and triglycerides (TG) were assessed using automatic biochemistry analyzer. After adjusting for age and body mass index (BMI), Chinese males had significantly higher percentage of body fat (PBF) both with respect to whole body (Chinese: 23.7%±0.2% vs. Whites: 22.4%±0.2%) and the trunk area (Chinese: 25.0%±0.3% vs. Whites: 23.2%±0.3%) compared to their white counterparts. At all BMIs, Chinese males had significantly higher fasting glucose levels (Chinese: 5.7±1.0 mmol/L vs. Whites: 5.2±1.0 mmol/L) but lower high-density lipoprotein levels (Chinese: 0.8±1.0 mmol/L vs. Whites: 1.0±1.0 mmol/L) than white males. In addition, a marginally significantly higher diastolic blood pressure was found among Chinese men than that among white men (Chinese: 80±1.0 mmHg vs. Whites: 77±1.0 mmHg). Chinese males had more body fat and a greater degree of central fat deposition pattern than that seen in white males in the present study. Furthermore, data on blood pressure, fasting glucose and blood lipids suggest that Chinese men may be more prone to obesity-related risk factors than white men.
本横断面观察性研究的目的是，鉴定居住在中国的中国男性与白种男性在人体成分和肥胖相关风险因素方面的种族差异。研究招募了 115 名中国男性飞行员和 114 名白种男性飞行员，年龄在 28-63 岁之间。按照标准程序，测量空腹体重、身高和血压。采用 8 电极生物阻抗分析（BIA）系统测量全身和节段性人体成分。使用自动生化分析仪检测空腹血清葡萄糖、空腹血浆总胆固醇（TC）、高密度脂蛋白（HDL）胆固醇和甘油三酯（TG）。校正年龄和体重指数（BMI）后，与白种人相比，中国人的全身（中国人：23.7%±0.2% vs. 白种人：22.4%±0.2%）和躯干区（中国人：25.0%±0.3% vs. 白种人：23.2%±0.3%）体脂百分比（PBF）更高。在所有 BMI 水平，中国人的空腹血糖水平（中国人：5.7±1.0 mmol/L vs. 白种人：5.2±1.0 mmol/L）更高，但高密度脂蛋白水平（中国人：0.8±1.0 mmol/L vs. 白种人：1.0±1.0 mmol/L）更低。此外，中国人的舒张压略高于白种人（中国人：80±1.0 mmHg vs. 白种人：77±1.0 mmHg）。与白种男性相比，中国男性的体脂更多，中心性脂肪沉积模式更严重。此外，血压、空腹血糖和血脂数据表明，中国男性可能比白种男性更容易受到肥胖相关风险因素的影响。
