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首页> 外文期刊>Preventive Medicine: An International Journal Devoted to Practice and Theory >The impact of a population-level school food and nutrition policy on dietary intake and body weights of Canadian children
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The impact of a population-level school food and nutrition policy on dietary intake and body weights of Canadian children

机译：人口水平的学校饮食和营养政策对加拿大儿童的饮食摄入量和体重的影响

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Objective: The objective of this study is to assess population-level trends in children's dietary intake and weight status before and after the implementation of a provincial school nutrition policy in the province of Nova Scotia, Canada. Method: Self-reported dietary behavior and nutrient intake and measured body mass index were collected as part of a population-level study with grade 5 students in 2003 (n = 5215) and 2011 (5508), prior to and following implementation of the policy. We applied random effects regression methods to assess the effect of the policy on dietary and health outcomes. Results: In 2011, students reported consuming more milk products, while there was no difference in mean consumption of vegetables and fruits in adjusted models. Adjusted regression analysis revealed a statistically significant decrease in sugar-sweetened beverage consumption. Despite significant temporal decreases in dietary energy intake and increases in diet quality, prevalence rates of overweight and obesity continued to increase. Conclusion: This population-level intervention research suggests a positive influence of school nutrition policies on diet quality, energy intake and healthy beverage consumption, and that more action beyond schools is needed to curb the increases in the prevalence of childhood obesity.
机译：目的：本研究的目的是评估加拿大新斯科舍省实施省级学校营养政策前后，儿童饮食摄入量和体重状况的总体水平趋势。方法：在该政策实施之前和之后，在2003年（n = 5215）和2011年（5508）对5年级学生进行了人口水平研究，收集了自我报告的饮食行为和营养摄入以及测得的体重指数。 。我们应用随机效应回归方法来评估该政策对饮食和健康结局的影响。结果：2011年，学生报告消费了更多的牛奶产品，而调整后的模型中蔬菜和水果的平均消费量没有差异。调整后的回归分析显示，加糖饮料的消费量在统计上有显着下降。尽管饮食中能量摄入的时间显着减少和饮食质量的提高，但超重和肥胖的患病率仍在增加。结论：这项人群水平的干预研究表明，学校营养政策对饮食质量，能量摄入和健康饮料消费有积极影响，并且需要采取更多的措施来遏制儿童肥胖的流行。

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