Mathematica Policy Research, Cambridge, Massachusetts.
Pediatrics. 2014 Apr;133(4):610-9. doi: 10.1542/peds.2013-2823. Epub 2014 Mar 3.
This article investigates the association between Supplemental Nutrition Assistance Program (SNAP) participation and child food security by using data from the largest national survey of the food security of SNAP participants to date.
The analysis used a survey of nearly 3000 households with children and a quasi-experimental research design that consisted of 2 sets of comparisons. Using a cross-sectional sample, we compared information collected from SNAP households within days of program entry with information collected from a contemporaneous sample of SNAP households that had participated for ∼6 months. Next, by using a longitudinal sample, we compared baseline information collected from new-entrant SNAP households with information from those same households 6 months later. Multivariate logistic regression analysis was used to estimate associations between SNAP and child food security.
SNAP participation was associated with an approximately one-third decrease in the odds of children being food insecure in both samples. In the cross-sectional analysis only, SNAP was also associated with a decrease in the odds of children experiencing severe food insecurity (designated very low food security). Findings were qualitatively robust to different empirical specifications.
After controlling for other possible confounders, we found children in households that had participated in SNAP for 6 months experienced improvements in food security. On the basis of these findings, we conclude SNAP serves a vital role in improving the health and well-being of low-income children by increasing food security. Future research is needed to determine whether specific groups of children experience differential improvements in food security.
本文利用迄今为止最大规模的关于补充营养援助计划(SNAP)参与者食品保障情况的全国性调查数据,调查 SNAP 参与与儿童食品保障之间的关联。
该分析使用了一项针对近 3000 户有儿童的家庭的调查以及一套准实验研究设计,其中包括 2 组比较。我们使用横断面样本,将在计划参与后几天内从 SNAP 家庭收集的信息与同期参与约 6 个月的 SNAP 家庭收集的信息进行比较。接下来,通过使用纵向样本,我们将新参与 SNAP 家庭的基线信息与同一家庭 6 个月后的信息进行比较。多变量逻辑回归分析用于估计 SNAP 与儿童食品保障之间的关联。
在两个样本中,SNAP 参与使儿童食品无保障的可能性降低了约三分之一。仅在横断面分析中,SNAP 还与儿童严重食品无保障(指定为极低食品保障)的可能性降低相关。研究结果在不同的实证规范下具有定性稳健性。
在控制了其他可能的混杂因素后,我们发现参与 SNAP 计划 6 个月的家庭中的儿童的食品保障状况有所改善。基于这些发现,我们得出结论,SNAP 通过增加食品保障,在改善低收入儿童的健康和福祉方面发挥了至关重要的作用。需要进一步的研究来确定是否特定群体的儿童在食品保障方面会有不同程度的改善。