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来源类型Working Paper
规范类型报告
DOI10.3386/w25847
来源IDWorking Paper 25847
Do Stricter Immunization Laws Improve Coverage? Evidence from the Repeal of Non-medical Exemptions for School Mandated Vaccines
Chelsea J. Richwine; Avi Dor; Ali Moghtaderi
发表日期2019-05-20
出版年2019
语种英语
摘要Nonmedical exemptions are widely shown to be associated with outbreaks of vaccine-preventable disease. In response to a recent measles outbreak in 2015, California acted to increase immunization coverage by removing all nonmedical exemptions effective in 2016. Employing a unique dataset of county-level vaccination and exemption rates at Kindergarten entry, we exploit the recent policy change in California to estimate the impact of the repeal of nonmedical exemptions on immunization coverage for school-mandated vaccines. Relative to a diverse group of control states, our findings indicate that vaccination coverage increased for all required vaccines following the repeal, ranging from 2.5% for MMR to 5% for Polio. We also find a significant 3.4 percentage-point decline in nonmedical exemptions, accompanied by a 2.1 percentage-point increase in medical exemptions in counties that previously had high rates of nonmedical waivers. Our findings indicate that the repeal of nonmedical exemptions in California was only partially effective in improving vaccination coverage, and may have led parents to substitute between medical and nonmedical exemptions, leading to a net decline in total exemptions of just 1 percentage-point.
主题Health, Education, and Welfare ; Health
URLhttps://www.nber.org/papers/w25847
来源智库National Bureau of Economic Research (United States)
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条目标识符http://119.78.100.153/handle/2XGU8XDN/583520
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Chelsea J. Richwine,Avi Dor,Ali Moghtaderi. Do Stricter Immunization Laws Improve Coverage? Evidence from the Repeal of Non-medical Exemptions for School Mandated Vaccines. 2019.
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