Association of cigarette smoking with obesity among middle-aged and elderly Chinese men
10.3321/j.issn:0253-9624.2008.z1.025
- VernacularTitle:上海市区中老年男性吸烟状况与肥胖关系的横断面研究
- Author:
Wang-Hong XU
1
;
Xiao-Ou SHU
;
Yong-Bing XIANG
;
Hui CAI
;
Hong-Lan LI
;
Da-Ke LIU
;
Gen-Ming ZHAO
;
Yu-Tang GAO
;
Wei ZHENG
Author Information
1. 上海交通大学
- Keywords:
Smoking;
Smoking cessation;
Obesity;
Cross-sectional study
- From:
Chinese Journal of Preventive Medicine
2008;42(z1):110-117
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the effect of cigarette smoking on obesity in middle-aged and elderly Chinese men.Methods From 2002 to 2006,a population-based cohort study of 61,491 Chinese men aged from 40 to 74 in urban Shanghai were conducted by the Shanghai Men's Health Study(SMHS).Information on smoking status and body weight change was collected using a structured questionnaire by face-to-face interview.Measurements of body weight,height and circumferences of waist and hip were taken by medical professionals.Multiple regression models were used to evaluate the associations of smoking habit with body mass index(BMI),waist-to-hip ratio(WHR)and adult body weight gain after adjusting for potential confounding factors.Results The current smokers had a lower BMI(23.4±3.1)and body weight gain in adulthood(11.6±9.7)kg than non-smokers[24.0±2.9 and(12.7±8.9)kg,respectively].The adjusted differences between these two groups were 0.60(95%CI:-0.67--0.54)for BMI and 1.46 kg (95%CI:-1.65--1.27)for body weight gain,respectively.Smokers,both former and current,showed a higher WHR than non-smokers with an adjusted average difference of 0.006 08(95%CI:0.005 08-0.007 09).Among current smokers,the WHR increased with the early age starting smoking,number of cigarettes smoked per day,years of smoking and pack-years of smoking in a dose-response manner.Further analysis showed that,although the ex-smokers showed a higher body weight and weigh gain than non-smokers in succedent several years of smoking cessation,they were comparable to non-smokers in body size after 5 years of quitting smoking.Conclusion Cigarette smoking may be inversely associated with body weight and weight gain but positively related to central fat deposition which is more detrimental to health than general obesity.The initial wain in weight after smoking cessation is temporary.
