Djimeu Eric W
The International Initiative for Impact Evaluation, 1625 Massachusetts Ave., NW Suite 450, Washington, DC 20036, USA.
Soc Sci Med. 2014 Apr;106:35-42. doi: 10.1016/j.socscimed.2013.12.027. Epub 2014 Jan 3.
Although recent evidence shows significant and long-lasting detrimental effects of armed conflict on child health, there is lack of studies rigorously assessing the effectiveness of different social and economic development interventions aiming to mitigate the impact of armed conflict on child health. In order to fill this knowledge gap, this study assesses the impact of health projects and water, sanitation, and waste management interventions financed by the Angola Social Action Fund (ASAF) from 1994 to 2001 on child health. I use data from Inquérito aos Agregados Familiares sobre Despesas e Receitas 2000/2001(IDR 2001), a household survey on expenditures and incomes conducted between February 2000 and February 2001 in Angola. IDR 2001 uses a stratified sampling design in which 12 households were surveyed in a random fashion in each aldeia (village) in rural areas and bairro (neighborhood) in urban areas. Using propensity score matching, a fixed effects model, and propensity-based weighted regression, I find that ASAF leads to a statistically significant increase of the height-for-age Z-scores (HAZ) by 0.335 standard deviations of children less than 5 years. This finding is robust to different implementations of the propensity score model specification and when conducting the sensitivity analysis of hidden bias. The main result that emerges from an analysis of heterogeneous effects shows that ASAF has no impact on children living in war displaced households. Despite many challenges faced by conflict affected countries, social funds which are one the key instruments of the World Bank used to promote development at the local level can be used to mitigate the impact of armed conflict on child health. For children living in war displaced households, specific interventions should be designed to mitigate the impact of armed conflict.
尽管最近的证据表明武装冲突对儿童健康有重大且持久的不利影响,但缺乏对旨在减轻武装冲突对儿童健康影响的不同社会和经济发展干预措施有效性的严格评估研究。为了填补这一知识空白,本研究评估了1994年至2001年由安哥拉社会行动基金(ASAF)资助的卫生项目以及水、环境卫生和废物管理干预措施对儿童健康的影响。我使用了2000/2001年家庭支出和收入综合调查(IDR 2001)的数据,这是一项于2000年2月至2001年2月在安哥拉进行的关于家庭支出和收入的住户调查。IDR 2001采用分层抽样设计,在农村地区的每个村庄(aldeia)和城市地区的每个街区(bairro)随机调查12户家庭。通过倾向得分匹配、固定效应模型和基于倾向的加权回归,我发现ASAF使5岁以下儿童的年龄别身高Z评分(HAZ)在统计上显著提高了0.335个标准差。这一发现对于倾向得分模型规范的不同实施方式以及进行隐藏偏差的敏感性分析时都是稳健的。对异质性效应分析得出的主要结果表明,ASAF对生活在战争流离失所家庭中的儿童没有影响。尽管受冲突影响的国家面临许多挑战,但作为世界银行用于促进地方发展的关键工具之一的社会基金可用于减轻武装冲突对儿童健康的影响。对于生活在战争流离失所家庭中的儿童,应设计具体干预措施以减轻武装冲突的影响。