The Danish Center for Social Science Research (VIVE), Herluf Trolles Gade 11, 1052 Copenhagen, Denmark.
J Health Econ. 2021 Mar;76:102439. doi: 10.1016/j.jhealeco.2021.102439. Epub 2021 Feb 10.
This paper studies non-adherence in the Danish Childhood Vaccination Program using a nationwide introduction of a vaccination reminder letter policy and administrative data from 2011-2017. First, I provide causal estimates of how the reminder letter policy affects vaccination adherence using a Regression Discontinuity Design (RDD). Second, I link parental responses to the reminder letter to parents' causes for being non-adherent. I find that the reminder letter policy positively affects adherence. However, 72% of non-adherent parents are non-responsive to the reminder letter indicating that reluctance and not inattention is the leading cause for non-adherence. Thus, other policies beyond reminder letters - such as mandatory vaccination laws - are necessary to substantially increase vaccination coverage.
本文使用全国范围内引入疫苗提醒信政策和 2011-2017 年的行政数据，研究了丹麦儿童疫苗接种计划中的不依从性。首先，我使用回归间断设计（RDD）提供了关于提醒信政策如何影响疫苗接种依从性的因果估计。其次，我将父母对提醒信的反应与父母不依从的原因联系起来。我发现提醒信政策对依从性有积极影响。然而，72%的不依从父母对提醒信没有反应，这表明不愿意和不关注是不依从的主要原因。因此，除了提醒信之外，还需要强制性疫苗接种法律等其他政策来大幅提高疫苗接种率。
