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目的:探讨腰围/身高比值(waist to height ratio,WHtR)用于对非肥胖者高血压风险的预测价值。方法:选取体质指数(BMI)<25的健康体检者,采用偏相关系数分析肥胖指数---WHtR、BMI、腰围及腰臀围比与血压的关系,Logistic回归分析控制年龄后各肥胖指数每升高1个标准差患高血压风险的比值比(OR值)及95%可信限。受试者工作特征(receiver operator characteristic,ROC)曲线分析各肥胖指数预测高血压的效能。结果:偏相关分析显示,调整年龄的影响后,各肥胖指数与血压显著相关,男、女性均以WHtR的相关系数最大。Logistic回归分析显示,WHtR预测高血压的OR值最大;ROC曲线分析显示,男、女性均以WHtR预测高血压的曲线下面积最大。结论:WHtR是有效的预测非肥胖者高血压的中心性肥胖指标。
Objective: To investigate the value of waist to height ratio (WHtR) for predicting the risk of hypertension in non-obese subjects. Methods: The body mass index (BMI) <25 healthy subjects, the partial correlation coefficient analysis of obesity index --- WHtR, BMI, waist circumference and waist-hip ratio and blood pressure, logistic regression analysis of control age after each obesity index Odds ratio (OR) and 95% confidence limit for raising the risk of developing hypertension by 1 standard deviation. The receiver operating characteristic (ROC) curve was used to analyze the effect of various obesity indices on prediction of hypertension. Results: Partial correlation analysis showed that after adjusting for age, each obesity index was significantly correlated with blood pressure, and the male to female WHtR had the highest correlation coefficient. Logistic regression analysis showed that WHtR predicted hypertension with the highest OR value. ROC curve analysis showed that the area under the curve of hypertension predicted by WHtR was the highest in both men and women. Conclusion: WHtR is an effective predictor of central obesity in non-obese hypertensive patients.