论文部分内容阅读
目的了解体质指数(BMI)、腰围、腰臀比(WHR)及脂肪率与中小学生胰岛素抵抗的相关性。方法测量247例中小学生身高、体重、腰围、臀围、脂肪率(%BF),计算BMI、WHR,测量其空腹血糖(FBG)及空腹胰岛素(FIN),通过稳态模型法(HOMA)计算胰岛素抵抗(IR)指数(HOMA-IR),评价胰岛素敏感性;通过ROC曲线下面积评价各项指标对IR的预测效能,并计算出相应指标的特异度及灵敏度,两者同时最大的点作为各项指标的切点。结果 ROC曲线下面积、切点分别为:BMI 0.771、27.45,WHR 0.681、0.923,腰围0.777、86.5cm,%BF 0.66%、26.85%。结论腰围、BMI、WHR、脂肪率均可作为预测IR的参考指标,腰围和BMI为最佳指标。
Objective To investigate the relationship between body mass index (BMI), waist circumference, waist-to-hip ratio (WHR) and fat percentage and insulin resistance in primary and secondary school students. Methods The height, weight, waist circumference, hip circumference and fat percentage (% BF) were measured in 247 primary and secondary school students. The BMI and WHR were calculated. The fasting blood glucose (FBG) and fasting insulin (FIN) were measured by HOMA (HOMA-IR) was used to evaluate the insulin sensitivity. The area under the ROC curve was used to evaluate the predictive power of IR and the specificity and sensitivity of each index were calculated. The cut-off point of the indicators. Results Area under the ROC curve and cut-off points were: BMI 0.771,27.45, WHR 0.681,0.923, waist circumference 0.777, 86.5cm,% BF 0.66%, 26.85%. Conclusions Waist circumference, BMI, WHR and fat rate are the reference indexes for predicting IR. Waist circumference and BMI are the best indexes.