Change in commute mode and body-mass index: prospective, longitudinal evidence from UK Biobank.
Change in commute mode and body-mass index: prospective, longitudinal evidence from UK Biobank.
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DOI：
10.1016/s2468-2667(16)30006-8
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发表时间：
2016-12
期刊：
影响因子：
--
通讯作者：
Cummins S
中科院分区：
文献类型：
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作者：
Flint E;Webb E;Cummins S
身体活动不足是肥胖和心血管疾病的决定因素。近几十年来，高收入国家的上班旅行减少了。我们的目的是确定哪些社会经济和人口统计学特征预测了主动通勤的转变，从被动通勤转变为主动通勤（或相反）是否独立预测了客观测量的体重指数（BMI）的变化，并确定社会经济，人口统计学或行为因素是否减弱了任何关联。这项研究使用了英国生物银行的纵向数据。2006年3月至2010年7月期间，在22个中心收集了基线数据，2012年8月至2013年6月期间，在一个中心（Stockport）对这些参与者的一个子集进行了重复评估。在两个时间点客观测量身高和体重。我们在分析样本中纳入了在两个时间点都有完整数据的个体。参与者年龄在40-69岁之间，在基线和随访时定期从家通勤到工作场所。研究了两种暴露：从汽车通勤过渡到主动或公共交通通勤，以及从主动或公共交通过渡到汽车通勤。基线和重复评估之间的BMI变化是关注的结果，采用双变量和多变量logistic回归模型进行评估。502656人提供了基线数据，其中20346人在中位数为4.4年（IQR 3.7 - 4.9）后参加了重复评估。 5861人在两个时间点都存在，并且所有分析变量都有完整的数据。从基线时的汽车通勤过渡到随访时的活动或公共交通方式的个体的BMI降低了− 0.30 kg/m2（95% CI − 0.47至− 0.13; p= 0.0005）。相反，从基线时的主动通勤过渡到随访时的汽车通勤的个体的BMI增加了0.32 kg/m2（0.13至0.50; p= 0.008）。这些影响并没有通过调整假设的混杂因素而减弱。家庭收入的变化成为通勤模式转变的决定因素。将增加身体活动作为上班通勤的一部分，可以减少英国中年人的肥胖。英国医学研究理事会。
Insufficient physical activity is a determinant of obesity and cardiovascular disease. Active travel to work has declined in high-income countries in recent decades. We aimed to determine which socioeconomic and demographic characteristics predicted switching to or from active commuting, whether switching from passive to active commuting (or the reverse) independently predicts change in objectively measured body-mass index (BMI), and to ascertain whether any association is attenuated by socioeconomic, demographic, or behavioural factors. This study used longitudinal data from UK Biobank. Baseline data collection occurred at 22 centres between March, 2006, and July, 2010, with a repeat assessment at one centre (Stockport) between August, 2012, and June, 2013, for a subset of these participants. Height and weight were objectively measured at both timepoints. We included individuals present at both timepoints with complete data in the analytic sample. Participants were aged 40–69 years and commuted from home to a workplace on a regular basis at both baseline and follow-up. Two exposures were investigated: transition from car commuting to active or public transport commuting and transition from active or public transport to car commuting. Change in BMI between baseline and repeat assessment was the outcome of interest, assessed with bivariate and multivariate logistic regression models. 502 656 individuals provided baseline data, with 20 346 participating in the repeat assessment after a median of 4·4 years (IQR 3·7–4·9). 5861 individuals were present at both timepoints and had complete data for all analytic variables. Individuals who transitioned from car commuting at baseline to active or public transportation modes at follow-up had a decrease in BMI of −0·30 kg/m2 (95% CI −0·47 to −0·13; p=0·0005). Conversely, individuals who transitioned from active commuting at baseline to car commuting at follow-up had a BMI increase of 0·32 kg/m2 (0·13 to 0·50; p=0·008). These effects were not attenuated by adjustment for hypothesised confounders. Change in household income emerged as a determinant of commute mode transitions. Incorporation of increased levels of physical activity as part of the commute to work could reduce obesity among middle-aged adults in the UK. UK Medical Research Council.