PURPOSE:Body mass index (BMI) and physical activity (PA) affect health-related quality of life (HRQL); however, the long-term impact of youth BMI and PA on adult HRQL is unknown. We investigated the relationship of youth BMI and PA to adult HRQL 22 years later. METHODS:Subjects included 310 participants aged 7 to 18 in the 1981 Canada Fitness Survey, followed up in 2002-2004. The associations of youth BMI and leisure time PA to adult HRQL were examined, comparing to age- and sex-adjusted Canadian SF-36 norms. RESULTS:Bivariate analyses revealed positive associations between youth overweight and mental aspects of adult HRQL, but little association with physical aspects. In logistic regression adjusting for adult BMI and other covariates, overweight youth were 7 times more likely than healthy weight youth to score at/above the norm on both mental health (MH) and bodily pain, and almost 18 times more likely on the mental component score (MCS). Youth BMI was also positively associated with general health (GH), social functioning, and role emotional. Removing adult BMI from the models led to attenuated associations with mental HRQL and no association with GH. Longitudinal BMI status change was explored, and findings supported the main regression results. Youth PA was not associated with adult HRQL. CONCLUSIONS:Youth overweight conveyed a long-term positive impact on several aspects of adult HRQL, and this impact may be both direct and indirect through BMI change and the effect on adult BMI. Youth PA had no long-term impact on adult HRQL.

译文

目的:身体质量指数(BMI)和体育锻炼(PA)影响与健康相关的生活质量(HRQL);然而,尚不清楚青年BMI和PA对成人HRQL的长期影响。我们调查了22年后青年BMI和PA与成人HRQL的关系。
方法:受试者包括1981年加拿大健康调查中的310位7至18岁的参与者,并于2002-2004年进行了随访。与年龄和性别调整后的加拿大SF-36规范相比,研究了青年BMI和休闲时间PA与成人HRQL的关联。
结果:双变量分析显示,青少年超重与成人HRQL的心理方面呈正相关,而与身体方面的相关性很小。在针对成人BMI和其他协变量进行logistic回归调整后,超重青年在心理健康(MH)和身体疼痛方面得分均高于/高于正常体重青年的几率是健康体重青年的7倍,而在心理因素方面的可能性高出近18倍分数(MCS)。青年BMI与总体健康(GH),社会功能和角色情感也呈正相关。从模型中删除成人BMI导致与心理HRQL的关联减弱,而与GH无关。探索了纵向BMI状态变化,研究结果支持了主要的回归结果。青年PA与成人HRQL无关。
结论:青少年超重对成人HRQL的多个方面产生了长期的积极影响,这种影响可能是通过BMI变化以及对成人BMI的直接或间接影响。青年PA对成人HRQL没有长期影响。

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