The waist-to-body mass index ratio as an anthropometric predictor for cardiovascular outcome in subjects with established atherosclerotic cardiovascular disease

Chin Feng Hsuan, Fang Ju Lin, Thung Lip Lee, Kai Chien Yang, Wei Kung Tseng, Yen Wen Wu, Wei Hsian Yin, Hung I. Yeh, Jaw Wen Chen, Chau Chung Wu, Wei Tien Chang, Yi Heng Lee, Jaw Wen Chen, Huey Herng Sheu, I. Chang Hsieh, Yih Sharng Chen, Ming En Liu, Chen Huan Chen, Lian Yu Lin, Hung I. YehShih Hsien Sung, Ping Yen Liu, I. Hui Wu, Zhi Hong Wang, Kuan Ming Chiu, Chi Tai Kuo, Tzung Dau Wang, Chung Lieh Hung, Chih Hsien Wang, Chun Chieh Wang, Chih Yuan Wang, Jiann Shing Jeng, Tsung Hsien Lin, Hsien Li Kao, Pao Hsien Chu, Fang Ju Lin, Zhih Cherng Chen, Kuan Cheng Chang, Wei Hsian Yin, Wei Kung Tseng

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6 Citations (Scopus)

Abstract

Obesity is an independent risk factor for atherosclerotic cardiovascular disease (ASCVD). However, ‘obesity paradox’ is observed in patients with coronary artery disease while defining obesity by body mass index (BMI). The purpose of this study is to identify a better anthropometric parameter to predict cardiovascular events in patients with ASCVD. The study was conducted using the Taiwanese Secondary Prevention for patients with AtheRosCLErotic disease (T-SPARCLE) Registry. A total of 6,920 adult patients with stable ASCVD, enrolled from January 2010 to November 2014, were included, with a mean age of 65.9 years, 73.9% males, and a mean BMI of 26.3 kg/m2 at baseline. These patients were followed up for a median of 2.5 years. The study endpoint was the composite major adverse cardiovascular event (MACE), defined as cardiovascular death, nonfatal myocardial infarction or stroke, or cardiac arrest with resuscitation. Multivariable Cox proportional hazards regression showed a significant positive association between waist-to-BMI ratio and MACE (adjusted hazard ratio 1.69 per cm‧m2/kg increase in waist-to-BMI ratio, 95% CI 1.12–2.49, p = 0.01) after adjusting for potential risk factors and confounders. Traditional anthropometric parameters, such as BMI, weight, waist and waist-hip ratio, or newer waist-based indices, such as body roundness index and a body shape index, did not show any significant linear associations (p = 0.09, 0.30, 0.89, 0.54, 0.79 and 0.06, respectively). In the restricted cubic spline regression analysis, the positive dose–response association between waist-to-BMI ratio and MACE persisted across all the range of waist-to-BMI ratio. The positive dose–response association was non-linear with a much steeper increase in the risk of MACE for waist-to-BMI ratio > 3.6 cm‧m2/kg. In conclusion, waist-to-BMI ratio may function as a positive predictor for the risk of MACE in established ASCVD patients.

Original languageEnglish
Article number804
JournalScientific Reports
Volume12
Issue number1
DOIs
Publication statusPublished - Dec 2022
Externally publishedYes

ASJC Scopus subject areas

  • General

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