年龄在吸烟状况与肥胖风险的关系中起着重要作用：一项针对中国成年人的大规模横断面研究。
Age plays an important role in the relationship between smoking status and obesity risk: a large scale cross-sectional study of Chinese adults.
作者信息
Su Pu, Hong Liu, Sun Hang, Zhao Yi Fan, Li Liang
机构信息
Research Center for Translational Medicine, East Hospital, Tongji University Shanghai, China.
Department of Finance, Sam M. Walton College of Business, University of Arkansas Fayetteville, United States of America.
出版信息
Int J Clin Exp Med. 2015 Oct 15;8(10):18894-906. eCollection 2015.
OBJECTIVE
To study the role of age plays in the relationship between smoking status and obesity in both Chinese men and women.
METHODS
From Chinese Physical and Psychological Database, participants were divided into non-smokers, current smokers, and former smokers. Body mass index (BMI), waist circumference (WC), fat percentage, fat mass, and fat free mass were measured. The mean, standard deviation and frequency of these indicators were calculated for each age bracket. One-way ANOVA and post-hoc test analyses were used to detect the difference among these three groups.
RESULTS
In men, from 19 to 24 years old, BMI, WC and fat free mass of current smokers were higher than that of non-smokers (P<0.01). However, fat mass and fat percentage of current smokers were lower than that of non-smokers but higher than that of former smokers (P<0.01). From 25 to 34 years old, BMI and fat mass of former smokers were higher than non-smokers and current smokers (P<0.01). In addition, WC and fat free mass of non-smokers were lower than that of current smokers and former smokers (P<0.01). From 45 to older, BMI, WC, fat mass, fat free mass and fat percentage of former smokers were higher than that of current smokers (P<0.01). From 55 to older, BMI, WC, fat mass, fat free mass and fat percentage of current smokers were lower than that of non-smokers (P<0.01). In women, smoking status might not be significantly related to obesity (P>0.05).
CONCLUSION
For young men, smoking might have an effect on increasing fat free mass, BMI and WC, and decreasing fat mass and fat percentage. For middle and older men, smoking might have an effect on decreasing fat free mass, fat mass, BMI, WC, and fat percentage. Obesity risk should be paid more attention in smoking cessation programs for those former smokers.
目的
研究年龄在中国男性和女性吸烟状况与肥胖关系中所起的作用。
方法
从中国生理与心理数据库中，将参与者分为非吸烟者、当前吸烟者和既往吸烟者。测量体重指数（BMI）、腰围（WC）、脂肪百分比、脂肪量和去脂体重。计算每个年龄组这些指标的均值、标准差和频率。采用单因素方差分析和事后检验分析来检测这三组之间的差异。
结果
在男性中，19至24岁时，当前吸烟者的BMI、WC和去脂体重高于非吸烟者（P<0.01）。然而，当前吸烟者的脂肪量和脂肪百分比低于非吸烟者但高于既往吸烟者（P<0.01）。25至34岁时，既往吸烟者的BMI和脂肪量高于非吸烟者和当前吸烟者（P<0.01）。此外，非吸烟者的WC和去脂体重低于当前吸烟者和既往吸烟者（P<0.01）。45岁及以上时，既往吸烟者的BMI、WC、脂肪量、去脂体重和脂肪百分比高于当前吸烟者（P<0.01）。55岁及以上时，当前吸烟者的BMI、WC、脂肪量、去脂体重和脂肪百分比低于非吸烟者（P<0.01）。在女性中，吸烟状况可能与肥胖无显著相关性（P>0.05）。
结论
对于年轻男性，吸烟可能会增加去脂体重、BMI和WC，并降低脂肪量和脂肪百分比。对于中年及老年男性，吸烟可能会降低去脂体重、脂肪量、BMI、WC和脂肪百分比。对于那些既往吸烟者，在戒烟计划中应更加关注肥胖风险。
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