通过母亲支持改善儿童免疫接种: 来自巴基斯坦随机干预的证据
Improving Childhood Immunization through Maternal Support: Evidence from a Randomized Intervention in Pakistan
Journal of Development Economics · 2025 · [{"name": "Adeline Delavande", "affiliation": []}, {"name": "Areeba Shahab", "affiliation": []}, {"name": "Javed Younas", "affiliation": []}, {"name": "Basit Zafar", "affiliation": []}]
中文摘要
我们评估了旨在缓解行为障碍（如母亲压力与心理负担、未来导向思维有限，以及信息摩擦）的随机干预，对巴基斯坦一组有婴儿的母亲样本中幼儿免疫接种率的有效性。一项通过电话提供轻度心理支持以及可视化和规划技巧的干预，在基线调查一年后，使幼儿接种疫苗总数增加0.3剂，即对照组均值的7%。我们还发现，该干预改善了母亲对疫苗接种的知识、态度及感知回报。然而，在此背景下，在该干预基础上补充来自影响者的疫苗接种相关信息，并未产生额外收益。
Abstract
We evaluate the effectiveness of randomized interventions aimed at alleviating behavioral barriers—such as maternal stress and psychological strain, limited future-oriented thinking, and information frictions—for early childhood immunization uptake in a sample of Pakistani mothers with infants. A phone-delivered intervention providing light psychological support as well as visualization and planning techniques increases the total number of vaccines received by young children by 0.3, or 7% of the control mean, one year after baseline. We also find that the intervention improves maternal knowledge, attitudes, and perceived returns to vaccination. However, supplementing this intervention with vaccination-related information from influencers does not yield additional benefits in this context.