Adolescents who are changing residence, as well as their social and economic circumstances may experience lifestyle changes that have an effect on body composition outcomes such as undernutrition, overweight or obesity. This paper uses data from Birth to Twenty, a birth cohort of South African urban children, to determine the relationship between residential mobility and body mass index (BMI) amongst Black adolescents aged 15 (n=1613), and to examine the role of changes in household socioeconomic status (SES). The prevalence of overweight and obesity in the sample was 25% in females and 8% in males. Amongst the females, a strong positive association between residential mobility and BMI was observed for those who also experienced an increase in household SES between birth and 15 years (β=0.42, SE=0.13), while no effect was identified for males. The study shows the potential for environmental change and increased resources to influence the risk for obesity. It also highlights the value in considering the range of social environmental factors and changes across the early life course that might play a part in evolving nutritional patterns in urban transitioning environments.

译文

:正在改变居住地的青少年以及他们的社会和经济状况,可能会经历生活方式的改变,这些改变会影响身体组成的结果,例如营养不良,超重或肥胖。本文使用南非城市儿童的出生队列出生至二十岁的数据来确定15岁黑人青少年(n = 1613)的居住流动性与体重指数(BMI)之间的关系,并研究变化的作用家庭社会经济地位(SES)。样本中超重和肥胖的患病率在女性中为25%,在男性中为8%。在女性中,对于那些出生至15岁之间家庭SES也有所增加的人,其居住活动性与BMI之间存在很强的正相关性(β= 0.42,SE = 0.13),而对男性没有影响。研究显示环境变化和增加资源影响肥胖风险的潜力。它还强调了考虑社会环境因素的范围和整个生命过程中的变化的价值,这些因素可能在城市过渡环境中不断演变的营养模式中发挥作用。

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