Relationship between obesity indices and hypertension among middle-aged and elderly populations in Taiwan: a community-based, cross-sectional study

Objective Obesity and hypertension (HTN) have become increasingly prevalent in Taiwan. People with obesity are more likely to have HTN. In this study, we evaluated several anthropometric measurements for the prediction of HTN in middle-aged and elderly populations in Taiwan.Design Cross-sectional ob...

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Main Authors: I-Shiang Tzeng, Yen-An Lin, Ying-Jen Chen, Yu-Chung Tsao, Wei-Chung Yeh, Wen-Cheng Li, Jau-Yuan Chen
Format: Article
Language:English
Published: BMJ Publishing Group 2019-10-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/9/10/e031660.full
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author I-Shiang Tzeng
Yen-An Lin
Ying-Jen Chen
Yu-Chung Tsao
Wei-Chung Yeh
Wen-Cheng Li
Jau-Yuan Chen
author_facet I-Shiang Tzeng
Yen-An Lin
Ying-Jen Chen
Yu-Chung Tsao
Wei-Chung Yeh
Wen-Cheng Li
Jau-Yuan Chen
author_sort I-Shiang Tzeng
collection DOAJ
description Objective Obesity and hypertension (HTN) have become increasingly prevalent in Taiwan. People with obesity are more likely to have HTN. In this study, we evaluated several anthropometric measurements for the prediction of HTN in middle-aged and elderly populations in Taiwan.Design Cross-sectional observational study.Setting Community-based investigation in Guishan Township of northern Taiwan.Participants A total of 396 people were recruited from a northern Taiwan community for a cross-sectional study. Anthropometrics and blood pressure were measured at the annual health exam. The obesity indices included body mass index (BMI), body fat (BF) percentage and waist circumference (WC).Outcome measures Statistical analyses, including Pearson’s correlation, multiple logistic regression and the area under ROC curves (AUCs) between HTN and anthropometric measurements, were used in this study.Results Of the 396 people recruited, 200 had HTN. The age-adjusted Pearson’s coefficients of BMI, BF percentage and WC were 0.23 (p<0.001), 0.14 (p=0.01) and 0.26 (p<0.001), respectively. Multiple logistic regression of the HTN-related obesity indices showed that the ORs of BMI, BF percentage and WC were 1.15 (95% CI 1.08 to 1.23, p<0.001), 1.07 (95% CI 1.03 to 1.11, p<0.001) and 1.06 (95% CI 1.03 to 1.08, p<0.001), respectively. The AUCs of BMI, BF percentage and WC were 0.626 (95% CI 0.572 to 0.681, p<0.001), 0.556 (95% CI 0.500 to 0.613, p=0.052) and 0.640 (95% CI 0.586 to 0.694, p<0.001), respectively.Conclusions WC is a more reliable predictor of HTN than BMI or BF percentage. The effect of abdominal fat distribution on blood pressure is greater than that of total BF amount.
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spelling doaj-art-e9a968fa81d541bd9731543724a121f02024-12-13T02:05:09ZengBMJ Publishing GroupBMJ Open2044-60552019-10-0191010.1136/bmjopen-2019-031660Relationship between obesity indices and hypertension among middle-aged and elderly populations in Taiwan: a community-based, cross-sectional studyI-Shiang Tzeng0Yen-An Lin1Ying-Jen Chen2Yu-Chung Tsao3Wei-Chung Yeh4Wen-Cheng Li5Jau-Yuan Chen68 Department of Statistics, National Taipei University, Taipei, Taiwan1 Family Medicine, Chang Gung Memorial Hospital Linkou Main Branch, Taoyuan, Taiwan2 Division of General Internal Medicine and Geriatrics, Chang Gung Memorial Hospital Linkou Branch, Taoyuan, Taiwan1 Family Medicine, Chang Gung Memorial Hospital Linkou Main Branch, Taoyuan, Taiwan1 Family Medicine, Chang Gung Memorial Hospital Linkou Main Branch, Taoyuan, TaiwanCollege of Medicine, Chang Gung University, Taoyuan, TaiwanDepartment of Family Medicine, Chang Gung Memorial Hospital Linkou Main Branch, Taoyuan, TaiwanObjective Obesity and hypertension (HTN) have become increasingly prevalent in Taiwan. People with obesity are more likely to have HTN. In this study, we evaluated several anthropometric measurements for the prediction of HTN in middle-aged and elderly populations in Taiwan.Design Cross-sectional observational study.Setting Community-based investigation in Guishan Township of northern Taiwan.Participants A total of 396 people were recruited from a northern Taiwan community for a cross-sectional study. Anthropometrics and blood pressure were measured at the annual health exam. The obesity indices included body mass index (BMI), body fat (BF) percentage and waist circumference (WC).Outcome measures Statistical analyses, including Pearson’s correlation, multiple logistic regression and the area under ROC curves (AUCs) between HTN and anthropometric measurements, were used in this study.Results Of the 396 people recruited, 200 had HTN. The age-adjusted Pearson’s coefficients of BMI, BF percentage and WC were 0.23 (p<0.001), 0.14 (p=0.01) and 0.26 (p<0.001), respectively. Multiple logistic regression of the HTN-related obesity indices showed that the ORs of BMI, BF percentage and WC were 1.15 (95% CI 1.08 to 1.23, p<0.001), 1.07 (95% CI 1.03 to 1.11, p<0.001) and 1.06 (95% CI 1.03 to 1.08, p<0.001), respectively. The AUCs of BMI, BF percentage and WC were 0.626 (95% CI 0.572 to 0.681, p<0.001), 0.556 (95% CI 0.500 to 0.613, p=0.052) and 0.640 (95% CI 0.586 to 0.694, p<0.001), respectively.Conclusions WC is a more reliable predictor of HTN than BMI or BF percentage. The effect of abdominal fat distribution on blood pressure is greater than that of total BF amount.https://bmjopen.bmj.com/content/9/10/e031660.full
spellingShingle I-Shiang Tzeng
Yen-An Lin
Ying-Jen Chen
Yu-Chung Tsao
Wei-Chung Yeh
Wen-Cheng Li
Jau-Yuan Chen
Relationship between obesity indices and hypertension among middle-aged and elderly populations in Taiwan: a community-based, cross-sectional study
BMJ Open
title Relationship between obesity indices and hypertension among middle-aged and elderly populations in Taiwan: a community-based, cross-sectional study
title_full Relationship between obesity indices and hypertension among middle-aged and elderly populations in Taiwan: a community-based, cross-sectional study
title_fullStr Relationship between obesity indices and hypertension among middle-aged and elderly populations in Taiwan: a community-based, cross-sectional study
title_full_unstemmed Relationship between obesity indices and hypertension among middle-aged and elderly populations in Taiwan: a community-based, cross-sectional study
title_short Relationship between obesity indices and hypertension among middle-aged and elderly populations in Taiwan: a community-based, cross-sectional study
title_sort relationship between obesity indices and hypertension among middle aged and elderly populations in taiwan a community based cross sectional study
url https://bmjopen.bmj.com/content/9/10/e031660.full
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