Blum Janet E Whatley, Davee Anne-Marie, Beaudoin Christina M, Jenkins Paul L, Kaley Lori A, Wigand Debra A
Exercise, Health, and Sport Sciences Department, University of Southern Maine, Gorham, Maine 04038, USA.
J Nutr Educ Behav. 2008 Nov-Dec;40(6):341-7. doi: 10.1016/j.jneb.2007.12.004.
To examine change in high school students' beverage consumption patterns pre- and post-intervention of reduced availability of sugar-sweetened beverages (SSB) and diet soda in school food venues.
A prospective, quasi-experimental, nonrandomized study design.
Public high schools.
A convenience sample from control (n = 221) and intervention (n = 235) high schools.
Schools aimed to reduce (n = 4) or not change (n = 3) availability of SSB and diet soda in food venues for 1 school year.
Subjects' beverage servings/day was determined from a food frequency questionnaire pre- and post-intervention.
Two-by-two mixed analysis of variance model compared pre- to post-intervention servings/day between control and intervention subjects, stratified by gender.
Consumption of SSB decreased in both intervention and control boys (F = 53.69, P < .05) and girls (F = 22.87, P < .05). Intervention girls decreased diet soda consumption as compared to control girls (F = 6.57, P < .05).
Reducing availability of SSB in schools did not result in a greater decrease in SSB consumption by intervention as compared to control subjects. The impact of reducing availability of SSB at school may be limited. A better understanding of beverage consumption patterns may be needed to determine the efficacy of school food policies on those youth susceptible to obesity.
研究在学校饮食场所减少含糖饮料(SSB)和无糖汽水供应的干预措施前后,高中生饮料消费模式的变化。
前瞻性、准实验性、非随机研究设计。
公立高中。
来自对照学校(n = 221)和干预学校(n = 235)的便利样本。
学校旨在在1个学年内减少(n = 4)或不改变(n = 3)饮食场所中SSB和无糖汽水的供应。
通过干预前后的食物频率问卷确定受试者每天的饮料摄入量。
采用二乘二混合方差分析模型,比较对照和干预组受试者干预前后每天的摄入量,并按性别分层。
干预组和对照组的男孩(F = 53.69,P <.05)和女孩(F = 22.87,P <.05)的SSB消费量均有所下降。与对照组女孩相比,干预组女孩的无糖汽水消费量有所下降(F = 6.57,P <.05)。
与对照组相比,学校减少SSB的供应并未使干预组的SSB消费量有更大幅度的下降。学校减少SSB供应的影响可能有限。可能需要更好地了解饮料消费模式,以确定学校饮食政策对那些易患肥胖症的青少年的效果。