Nonsignificant Relationship between Participation in School-Provided Meals and Body Mass Index during the Fourth-Grade School Year
Nonsignificant Relationship between Participation in School-Provided Meals and Body Mass Index during the Fourth-Grade School Year
复制标题
DOI：
10.1016/j.jada.2011.08.037
复制
发表时间：
2012-01-01
影响因子：
4.8
通讯作者：
Finney, Christopher J.
中科院分区：
文献类型：
--
作者：
Paxton, Amy E.;Baxter, Suzanne Domel;Finney, Christopher J.
对四项涉及四年级儿童的横断面研究的数据进行了分析，以调查参与学校提供的膳食与体重指数 (BMI) 之间的关系，以及观察到的能量摄入对该关系的影响。总共有 13 所学校的 1,535 名儿童（51% 是黑人；51% 是女孩）在 4 个学年（1999 年秋季至 2003 年春季；每个学年一项研究）的参与和 BMI 数据。对 342 名儿童（54% 黑人；50% 女孩）的一到三顿早餐和一到三顿午餐的每个孩子总共 1,264 份学校膳食（50% 早餐）进行了直接膳食观察。早餐、午餐和组合餐（同一天的两餐）的参与情况是根据为每项研究的膳食观察而编制的姓名标签记录确定的。测量了体重和身高。以BMI为因变量拟合边际回归模型；自变量是早餐参与、午餐参与、综合参与、性别、年龄、种族和学习。对于儿童子集，观察到的早餐、午餐和组合的能量摄入量被纳入额外的分析中。无论分析是否包括观察到的能量摄入，早餐、午餐及其组合的参与与 BMI 均不显着相关（P 值 >0.181）。观察到的早餐和午餐能量摄入（单独和组合）与 BMI 之间呈正相关（P 值
Data from four cross-sectional studies involving fourth-grade children were analyzed to investigate the relationship between participation in school-provided meals and body mass index (BMI), and the effect observed energy intake has on that relationship. Participation and BMI data were available on 1,535 children (51% black; 51% girls) for 4 school years (fall 1999 to spring 2003; one study per school year) at 13 schools total. Direct meal observations were available for a subset of 342 children (54% black; 50% girls) for one to three breakfasts and one to three lunches per child for a total of 1,264 school meals (50% breakfast). Participation in breakfast, lunch, and combined (both meals on the same day) was determined from nametag records compiled for meal observations for each study. Weight and height were measured. A marginal regression model was fit with BMI as the dependent variable; independent variables were breakfast participation, lunch participation, combined participation, sex, age, race, and study. For the subset of children, observed energy intake at breakfast, lunch, and combined was included in additional analyses. Participation in breakfast, lunch, and combined was not significantly associated with BMI regardless of whether analyses included observed energy intake (P values >0.181). The relationship between observed energy intake at breakfast and lunch, separately and combined, with BMI was positive (P values