School of Public Health and Health Systems,University of Waterloo,200 University Avenue West,Waterloo,Ontario,Canada,N2L 3G1.
Public Health Nutr. 2019 Aug;22(11):1928-1940. doi: 10.1017/S1368980018001246. Epub 2018 May 21.
To examine associations between Canadian adolescents' sugar-sweetened beverage (SSB) consumption and several school food environment characteristics, and to investigate differences in these characteristics between schools in provinces with voluntary (Alberta) v. mandatory (Ontario) provincial school nutrition policies.
We used a questionnaire to assess the number of weekdays participants consumed three SSB categories (soft drinks, sweetened coffees/teas, energy drinks) and various sociodemographic and behavioural characteristics. We examined the in-school water fountain accessibility, vending machines' contents and presence of various food outlets within schools' 1 km buffer. We developed hierarchical Poisson regression models to identify associations between student- and school-level characteristics and students' SSB outcomes.
Alberta and Ontario, Canada.
Adolescents (n 41 829) from eighty-nine secondary schools.
Compared with their Ontarian counterparts, Albertan participants had a significantly higher rate of SSB intake across all drink categories and SSB availability was significantly greater in Albertan schools' vending machines. Availability of sweetened coffees/teas in school vending machines and access to restaurants within the school's 1 km buffer were associated with increased SSB intake in three of the final models. Overall, the school food environment-level characteristics examined had a modest to negligible impact on student days of SSB intake.
We identified that the school food environment characteristics examined here had little impact on adolescents' days of SSB consumption. While schools should adopt or maintain a comprehensive policy approach to discourage students' SSB intake, population-level interventions focusing on other contexts (e.g. home and community) are needed to complement existing school-based interventions.
研究加拿大青少年含糖饮料（SSB）消费与学校食品环境特征之间的关联，并调查在具有自愿性（艾伯塔省）和强制性（安大略省）省级学校营养政策的省份之间，这些特征在学校之间的差异。
我们使用问卷评估参与者在工作日消费三种 SSB 类别（软饮料、加糖咖啡/茶、能量饮料）的天数以及各种社会人口统计学和行为特征。我们检查了校内饮水机的可及性、自动售货机的内容以及学校 1 公里缓冲区范围内各种食品店的存在情况。我们开发了分层泊松回归模型，以确定学生和学校层面的特征与学生 SSB 结果之间的关联。
加拿大艾伯塔省和安大略省。
来自八十九所中学的青少年（n=41829）。
与安大略省的同龄人相比，艾伯塔省的参与者在所有饮料类别中 SSB 的摄入量明显更高，而且艾伯塔省学校的自动售货机中 SSB 的供应量明显更大。学校自动售货机中加糖咖啡/茶的供应情况以及学校 1 公里缓冲区范围内餐馆的可及性与三种最终模型中 SSB 摄入量的增加相关。总体而言，所检查的学校食品环境特征对学生 SSB 摄入量的天数影响适度或微不足道。
我们发现，这里检查的学校食品环境特征对青少年 SSB 消费天数的影响很小。虽然学校应该采取或维持全面的政策方法来阻止学生 SSB 的摄入，但需要在其他环境（如家庭和社区）中开展以人群为基础的干预措施，以补充现有的学校干预措施。
