McIsaac Jessie-Lee D, Chu Yen Li, Blanchard Chris, Rossiter Melissa, Williams Patricia, Raine Kim, Kirk Sara F L, Veugelers Paul J
University of Alberta.
Can J Public Health. 2015 Feb 3;106(2):e43-51. doi: 10.17269/cjph.106.4743.
To assess what health promotion policies and practices were adopted by schools in Nova Scotia and the extent that these policies and practices affected the diet quality, physical activity (PA) and weight status of students.
We developed and administered a 'school practice assessment tool' to assess the presence of 72 different school-based health promotion policies and practices. Surveys were conducted in 2003 and 2011 to assess diet, PA and weight status in approximately 10,000 grade 5 students. We used multilevel regression methods to examine changes in these outcomes across schools with varying levels of health promotion policies and practices between the two time-points.
Between 2003 and 2011 the diet quality of students improved, PA decreased and the prevalence of childhood obesity increased. Although we did not find consistent or significant favourable benefits resulting from higher implementation levels, we did observe fewer negative trends among schools at higher levels of implementation.
Our results build on the current gap in knowledge on the impact of Health Promoting Schools (HPS) implementation through population health interventions, but there is a continued need for further evaluation and monitoring of school policies to understand how HPS practices are supporting healthier eating and PA for students.
评估新斯科舍省的学校采用了哪些健康促进政策和措施，以及这些政策和措施对学生饮食质量、身体活动（PA）和体重状况的影响程度。
我们开发并实施了一种“学校实践评估工具”，以评估72种不同的基于学校的健康促进政策和措施的存在情况。在2003年和2011年进行了调查，以评估约10000名五年级学生的饮食、PA和体重状况。我们使用多层次回归方法来研究在两个时间点之间，健康促进政策和措施水平不同的学校中这些结果的变化。
2003年至2011年期间，学生的饮食质量有所改善，PA减少，儿童肥胖患病率增加。虽然我们没有发现更高实施水平带来一致或显著的有利益处，但我们确实观察到在实施水平较高的学校中负面趋势较少。
我们的研究结果基于目前通过人群健康干预实施健康促进学校（HPS）的影响方面的知识差距，但仍需要进一步评估和监测学校政策，以了解HPS实践如何支持学生更健康的饮食和PA。
