School of Medicine, University of East Anglia, Norwich NR4 7JT, UK.
Public Health Nutr. 2010 Jul;13(7):1022-30. doi: 10.1017/S1368980009992035. Epub 2009 Nov 16.
Poor diet in childhood increases risk of obesity but the relationship between access to food and children's food choice is underexplored. We determined relationships between distance to and density of food outlets on children's food choice.
Children (n 1721) aged 9-10 years who participated in a cross-sectional study from a sample of state and private schools across urban and rural areas. Food consumption was reported using a short validated FFQ. A Geographic Information System was used to determine proximity to local food outlets. Multivariable regression analyses were performed to determine associations between food consumption and distance to and density of local food outlets.
Norfolk, England.
Boys (n 754) and girls (n 967) aged 9-10 years.
The impact of distance to or density of food outlets on food choice was small after adjustment. Living further away from a supermarket increased portions of fruit (0.11 portions/week per 1 km increase in distance to nearest supermarket, P < 0.05) and vegetables (0.11 portions/week, P < 0.05) consumed. Living closer to convenience stores was also associated with an increased consumption of crisps, chocolate and white bread. Density of supermarkets was associated with both an increase in vegetable intake (0.31 portions/week, P < 0.05) and unhealthy foods.
Distance to and density of food outlets are both associated with children's food choice, although the impact appears to be small and the relationship is complex. However, the effects of individual foods combined could be important, particularly as even small differences in intake can impact on body weight over time.
儿童时期不良的饮食会增加肥胖的风险,但食物获取与儿童食物选择之间的关系尚未得到充分探索。我们确定了儿童食物选择与距离和食品店密度之间的关系。
本研究从城乡公立和私立学校的样本中招募了 1721 名 9-10 岁的儿童参与横断面研究。使用经过验证的简短 FFQ 报告食物摄入量。使用地理信息系统确定当地食品店的位置。进行多变量回归分析以确定食物摄入量与距离和当地食品店密度之间的关联。
英国诺福克。
9-10 岁的男孩(n=754)和女孩(n=967)。
调整后,距离或食品店密度对食物选择的影响较小。距离最近的超市每增加 1 公里,水果(每周增加 0.11 份,P<0.05)和蔬菜(每周增加 0.11 份,P<0.05)的摄入量会增加。居住在便利店附近也与薯片、巧克力和白面包的摄入量增加有关。超市的密度与蔬菜摄入量的增加(每周增加 0.31 份,P<0.05)和不健康食品的摄入有关。
距离和食品店密度都与儿童的食物选择有关,尽管影响似乎很小,而且关系很复杂。然而,个体食物的综合效果可能很重要,特别是即使摄入量略有差异,也会随着时间的推移对体重产生影响。