Obesity indexes in relation to the risk of type 2 diabetes and hypertension in the general population of Taiwan.

• Main Authors: Chin-Feng, 楊金峰
• Other Authors: Yung-Po Liaw
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/35831976252440143586

碩士 === 中山醫學大學 === 公共衛生學系碩士班 === 96 === Purpose: The purpose of this study was to compare the performance of measures of central, general and the proposed new index to predict the risk of type 2 diabetes and/or hypertension for Taiwanese individuals. Method: The data were obtained from the Nutrition and Health Survey in Taiwan (NASHIT) 1993-1996. We compared the predictive performance of five anthropometric indexes: one related to general obesity ─ body mass index (BMI); and four related to central obesity ─ waist circumference (WC), waist-hip ratio (WHR), waist-height ratio (WHtR), and the new obesity index (volume weight ratio, VWtR). We used the unconditional logistic regression and the area under (AUC) receiver-operating characteristic (ROC) curves to compare the performance of the indexes. Multivariate adjusted odds ratios (ORs) were estimated from the unconditional logistic regression. Results: Subjects in male with WHR value ≥ 0.91 (OR = 5.23; 95% CI: 1.59 ~ 17.23) and 0.87 ~ 0.91 (OR = 4.20; 95% CI: 1.53 ~ 11.49) showed significantly increased risk of diabetes than subjects with WHR value < 0.87 (OR = 1.00) (test for trend: p = 0.01). Subjects in female with VWtR value ≥ 1.38 (OR = 6.15; 95% CI: 1.52 ~ 24.96) showed significantly increased risk of diabetes than subjects with VWtR value < 1.22 (OR = 1.00) (test for trend: p = 0.009). Subjects in male with BMI value ≥ 25.74 (OR = 2.36; 95% CI: 1.36 ~ 4.10) and 23.39 ~ 25.74 (OR = 1.72; 95% CI: 1.15 ~ 2.57) showed significantly increased risk of hypertension than subjects with BMI value < 23.39 (OR = 1.00) (test for trend: p = 0.003). Subjects in female with BMI value ≥ 26.63 (OR = 2.82; 95% CI: 1.58 ~ 5.06) and 23.73 ~ 26.63 (OR = 2.15; 95% CI: 1.41 ~ 3.27) showed significantly increased risk of hypertension than subjects with BMI value < 23.73 (OR = 1.00) (test for trend: p < 0.001). WHR ( AUC = 0.74 for male), VWtR ( AUC = 0.84 for female) and BMI ( AUC = 0.73 for male and AUC = 080 for female) had the highest area under the ROC curve to predict diabetes and hypertension, respectively. Conclusion: Our findings suggested that WHR and VWtR could be a better predictor of the risk of diabetes for male and female, respectively. BMI could be the better predictor of the risk of hypertension for both genders.