Department of Pediatrics, University of California at San Francisco, 3333 California St, Ste 245, Mailbox 0503, San Francisco, CA 94118, USA.
Prev Chronic Dis. 2011 May;8(3):A60. Epub 2011 Apr 15.
Although several studies suggest that drinking water may help prevent obesity, no US studies have examined the effect of school drinking water provision and promotion on student beverage intake. We assessed the acceptability, feasibility, and outcomes of a school-based intervention to improve drinking water consumption among adolescents.
The 5-week program, conducted in a Los Angeles middle school in 2008, consisted of providing cold, filtered drinking water in cafeterias; distributing reusable water bottles to students and staff; conducting school promotional activities; and providing education. Self-reported consumption of water, nondiet soda, sports drinks, and 100% fruit juice was assessed by conducting surveys among students (n = 876), preintervention and at 1 week and 2 months postintervention, from the intervention school and the comparison school. Daily water (in gallons) distributed in the cafeteria during the intervention was recorded.
After adjusting for sociodemographic characteristics and baseline intake of water at school, the odds of drinking water at school were higher for students at the intervention school than students at the comparison school. Students from the intervention school had higher adjusted odds of drinking water from fountains and from reusable water bottles at school than students from the comparison school. Intervention effects for other beverages were not significant.
Provision of filtered, chilled drinking water in school cafeterias coupled with promotion and education is associated with increased consumption of drinking water at school. A randomized controlled trial is necessary to assess the intervention's influence on students' consumption of water and sugar-sweetened beverages, as well as obesity-related outcomes.
尽管有几项研究表明，饮水可能有助于预防肥胖，但美国尚无研究调查学校提供和推广饮用水对学生饮料摄入的影响。我们评估了一项基于学校的干预措施的可接受性、可行性和结果，该措施旨在提高青少年的饮用水消费。
该为期 5 周的计划于 2008 年在洛杉矶的一所中学进行，包括在自助餐厅提供冷过滤饮用水；向学生和工作人员分发可重复使用的水瓶；开展学校宣传活动；并提供教育。通过在干预学校和对照学校的学生（n=876）中进行调查，在干预前、干预后 1 周和 2 个月评估学生自我报告的水、非节食苏打水、运动饮料和 100%果汁的摄入量。在干预期间，记录在自助餐厅分发的每日水量（加仑）。
在调整了社会人口特征和在校水摄入量的基线后，干预学校的学生在校饮水的可能性高于对照学校的学生。与对照学校的学生相比，干预学校的学生更有可能从喷泉和可重复使用的水瓶中在校内饮用更多的水。其他饮料的干预效果不显著。
在学校自助餐厅提供过滤、冷却的饮用水，并配以宣传和教育，与在校内饮用更多水有关。需要进行随机对照试验来评估该干预措施对学生饮用水和含糖饮料的摄入量以及与肥胖相关的结果的影响。
