Effects of neighbourhood income on reported body mass index: an eight year longitudinal study of Canadian children
Effects of neighbourhood income on reported body mass index: an eight year longitudinal study of Canadian children
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DOI：
10.1186/1471-2458-8-16
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发表时间：
2008-01-14
影响因子：
4.5
通讯作者：
Hayes, Michael V.
中科院分区：
文献类型：
--
作者：
Oliver, Lisa N.;Hayes, Michael V.
背景：本研究使用纵向数据研究了邻里收入对儿童(2-3岁)到青春期早期(10-11岁)的身体质量指数(BMI)的影响。方法：对加拿大国家儿童和青年纵向调查的五个周期的数据进行分析，以2-3岁的儿童为子样本(n=2152)，从1994年开始，每隔两年进行一次评估，直到2002年。身体质量指数百分位数是根据代理受访者(最了解儿童的人)报告的身高/体重估计得出的。在基线上评估了家庭和邻里因素。邻里低收入的普遍程度是从1996年的人口普查中得出的，从“最贫穷”到“最不贫穷”分为三类。结果：在控制了个人/家庭因素(年龄、性别、收入、教育程度、家庭结构)后，与中等收入社区相比，居住在最贫困社区的BMI百分位数随着时间的推移而增加(1.46，95%可信区间0.16至2.75)。居住在城市(与农村)社区的儿童BMI百分位数(-3.57，95%CI-6.38至-0.76)在所有时间段都有所下降。结论：这些发现提供了证据，表明社区劣势对儿童BMI的影响发生在儿童和青春期早期，并建议政策应针对儿童的状况，包括社区环境。
Background: This study investigates the effects of neighbourhood income on children's Body Mass Index (BMI) from childhood (ages 2-3) to early adolescence (ages 10-11) using longitudinal data.Methods: Five cycles of data from the Canadian National Longitudinal Survey of Children and Youth are analyzed for a sub-sample of children (n = 2152) aged 2-3 at baseline (1994) and assessed at two year intervals to 2002. Body mass index percentiles are based on height/weight estimates reported by proxy respondents (child's person most knowledgeable). Family and neighbourhood factors were assessed at baseline. The prevalence of neighbourhood low income was obtained from the 1996 Census and divided into three categories from 'most poor' to 'least poor'. Longitudinal modelling techniques were applied to the data.Results: After controlling for individual/family factors (age, sex, income, education, family structure) living in the 'most poor' neighbourhood was associated with increasing BMI percentile (1.46, 95% CI 0.16 to 2.75) over time compared to a 'middle' income neighbourhood. Living in an urban (vs. rural) neighbourhood was associated with a decreased BMI percentile (-3.57, 95% CI -6.38 to -0.76) across all time periods.Conclusion: These findings provide evidence that effects of neighbourhood disadvantage on children's BMI occur between childhood and early adolescence and suggest that policies should target the conditions of childhood, including the neighbourhood environment.