Rona R J, Chinn S, Smith A M
J Epidemiol Community Health. 1983 Mar;37(1):8-15. doi: 10.1136/jech.37.1.8.
The effect of school meals on the rate of growth was assessed in two sets of children over one, two, and three-year periods in England and Scotland between 1973 and 1979. In all analyses children were subdivided into three groups: poor, not poor, and undefined, according to a set of questions on social circumstances. The rate of growth was assessed for children receiving school meals, lunches prepared at home, and those who changed scheme during the study period. No relation between rate of growth and uptake of school meals was found at any of the levels of poverty in England. In Scotland there was some indication in the poor group that children who received school meals had a smaller rate of growth than children having lunches prepared at home. There was inconclusive evidence that children from the poorer sectors of the community whose mother's worked outside the home may benefit from the school meals system. Although children selected for welfare support were smaller than other children, in so far as the design of the study allowed school meals during the 1970s did not increase the rate of growth of primary school children in any social stratum.
1973年至1979年间，在英格兰和苏格兰，对两组儿童进行了为期一年、两年和三年的评估，以研究学校膳食对儿童生长速度的影响。在所有分析中，根据一系列关于社会环境的问题，将儿童分为三组：贫困组、非贫困组和情况不明组。对接受学校膳食、在家准备午餐以及在研究期间改变膳食计划的儿童的生长速度进行了评估。在英格兰的任何贫困水平上，均未发现生长速度与学校膳食摄入量之间存在关联。在苏格兰，贫困组有迹象表明，接受学校膳食的儿童的生长速度低于在家准备午餐的儿童。有不确定的证据表明，母亲在外工作的社区贫困家庭的儿童可能会从学校膳食系统中受益。尽管被选为福利支持对象的儿童比其他儿童身材矮小，但就研究设计而言，20世纪70年代的学校膳食并未提高任何社会阶层小学生的生长速度。
