abdominal obesity and its attribution to all cause mortality in the general population with 14 years follow up findings from shanxi cohort in china

• DOI: 10.3967/bes2020.032
• Publication Date: 2020-04-01
• Authors: Yan Fang Zhao; Yi Zhai; Ze Ping Ren; Zhao Xue Yin; Sheng Quan Mi; Jian Zhang; Peng Kun Song; Yong Jiang; Mei Zhang; Wenhua Zhao; Zhuo Qun Wang
• Keywords: Adult; Aged, 80 and over; Male; China; Age Factors; Middle Aged; Cohort Studies; Young Adult; Sex Factors; Risk Factors; Obesity, Abdominal; Humans; Female; Mortality; Waist Circumference; Aged; Follow-Up Studies

This study aimed to assess the association of waist circumference (WC) with all-cause mortality among Chinese adults.The baseline data were from Shanxi Province of 2002 China Nutrition and Health Survey. The death investigation and follow-up visit were conducted from December 2015 to March 2016. The visits covered up to 5,360 of 7,007 participants, representing a response rate of 76.5%. The Cox regression model and floating absolute risk were used to estimate hazard ratio and 95% floating CI of death by gender and age groups (≥ 60 and < 60 years old). Sensitivity analysis was performed by excluding current smokers; participants with stroke, hypertension, and diabetes; participants who accidentally died; and participants who died during the first 2 years of follow-up.This study followed 67,129 person-years for 12.5 years on average, including 615 deaths. The mortality density was 916 per 100,000 person-years. Low WC was associated with all-cause mortality among men. Multifactor-adjusted hazard ratios ( HR) were 1.60 (1.35-1.90) for WC < 75.0 cm and 1.40 (1.11-1.76) for WC ranging from 75.0 cm to 79.9 cm. Low WC (< 70.0 cm and 70.0-74.9 cm) and high WC (≥ 95.0 cm) groups had a high risk of mortality among women. The adjusted HRs of death were 1.43 (1.11-1.83), 1.39 (1.05-1.84), and 1.91 (1.13-3.22).WC was an important predictor of death independent of body mass index (BMI). WC should be used as a simple rapid screening and predictive indicator of the risk of death.