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A Cross-Sectional Study to Determine the Energy Density and Nutritional Quality of Primary-School Children’s Lunchboxes

Public health nutrition(2020)SCI 3区

Hunter New England Populat Hlth

Cited 13|Views22
Abstract
Abstract Objective: The present study describes the energy content of primary-school children’s lunchboxes and the proportion of lunchbox foods considered discretionary. Subgroup analyses by sex, socio-economic status, age and weight status were undertaken. Design: A cross-sectional study was conducted. Mean kilojoule content, number of items and categorisation of foods and drinks in lunchboxes as ‘everyday’ (healthy) or discretionary (sometimes) foods were assessed via a valid and reliable lunchbox observational audit. Setting: Twelve Catholic primary schools (Kindergarten–Grade 6) located in the Hunter region of New South Wales, Australia. Participants: Kindergarten to Grade 6 primary-school students. Results: In total, 2143 children (57 %) had parental consent to have their lunchboxes observed. School lunchboxes contained a mean of 2748 kJ, of which 61·2 % of energy was from foods consistent with the Australian Dietary Guidelines and 38·8 % of energy was discretionary foods. The proportion of lunchboxes containing only healthy foods was 12 %. Children in Kindergarten–Grade 2 packed more servings of ‘everyday’ foods (3·32 v. 2·98, P < 0·01) compared with children in Grades 3–6. Children in Grades 3–6 had a higher percentage of energy from discretionary foods (39·1 v. 33·8 %, P < 0·01) compared with children in Kindergarten–Grade 2 and children from the most socio-economically disadvantaged areas had significantly higher total kilojoules in the school lunchbox compared with the least disadvantaged students (2842 v. 2544 kJ, P = 0·03). Conclusions: Foods packed within school lunchboxes may contribute to energy imbalance. The development of school policies and population-based strategies to support parents overcome barriers to packing healthy lunchboxes are warranted.
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Children,Nutrition,School,Lunchbox,Childhood obesity,Energy density,School lunchboxes
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要点】:本研究通过横断面调查分析了澳大利亚新南威尔士州亨特地区小学生午餐的能量密度和营养质量,发现大部分午餐包含的能量来自可自由选择的食物,并提出学校政策和基于人群的策略对促进健康午餐盒的重要性。

方法】:研究采用有效的午餐盒观察审核方法,评估了午餐盒中的平均千焦耳含量、物品数量以及食物和饮料作为“日常”(健康)或可自由选择(有时)食品的分类。

实验】:在12所天主教小学进行的实验中,共有2143名学生的午餐盒得到观察,结果显示午餐盒的平均能量含量为2748千焦耳,其中38.8%的能量来自可自由选择的食品。