Molarius A, Seidell J C
The Netherlands Institute for Health Sciences, Erasmus University Medical School, Rotterdam, The Netherlands.
Int J Obes Relat Metab Disord. 1997 Mar;21(3):189-96. doi: 10.1038/sj.ijo.0800386.
To investigate differences in the association between smoking and relative body weight by sex, age group and level of education.
Cross-sectional study.
About 36,000 men and women who participated in the Monitoring Project on Cardiovascular Disease Risk Factors in the Netherlands in 1987-1991.
The association between smoking and relative body weight differed by level of education. This difference was more pronounced among men than among women. Male heavy smokers had statistically significantly (P < 0.05) higher mean body mass index (BMI) than never smokers at high educational level, whereas they had a significantly lower mean BMI than never smokers at low educational level. In addition, ex-smokers had significantly higher mean BMI than never smokers in men with high education but not in men with low education nor in women. The difference in the association between smoking and relative body weight by educational level could not be explained by physical activity, fat intake or alcohol consumption nor by factors related to smoking behaviour.
The association between smoking and relative body weight may differ between subgroups within one population. Therefore adjustment for these subgroups, for example for educational level, may be inappropriate in studies of the BMI-smoking relationship. Also, stopping smoking may have difference effects on weight in these subgroups.
探讨吸烟与相对体重之间的关联在性别、年龄组和教育水平方面的差异。
横断面研究。
1987年至1991年参与荷兰心血管疾病危险因素监测项目的约36000名男性和女性。
吸烟与相对体重之间的关联因教育水平而异。这种差异在男性中比在女性中更为明显。在高教育水平下，男性重度吸烟者的平均体重指数（BMI）在统计学上显著高于从不吸烟者（P<0.05），而在低教育水平下，他们的平均BMI显著低于从不吸烟者。此外，在高学历男性中，戒烟者的平均BMI显著高于从不吸烟者，但在低学历男性和女性中并非如此。吸烟与相对体重之间的关联因教育水平产生的差异无法通过体育活动、脂肪摄入或酒精消费来解释，也无法通过与吸烟行为相关的因素来解释。
吸烟与相对体重之间的关联在同一人群的不同亚组中可能存在差异。因此，在研究BMI与吸烟的关系时，对这些亚组（如教育水平）进行调整可能并不合适。此外，戒烟对这些亚组体重的影响可能也存在差异。
