The effects of day care on health during childhood: evidence by age
Summary of Working paper 2020:5
This paper studies the eﬀects of day care exposure on behavioral problems and mental health as well as on various aspects of physical health, at various ages during childhood. We draw on a unique set of comprehensive individual-level out-patient and inpatient health care register data from Sweden over the period 1999-2008 merged with other population register data. By exploiting variation in day care exposure by age generated by a major day care policy reform, we estimate cumulative and instantaneous eﬀects on child health at diﬀerent ages. We ﬁnd beneﬁcial cumulative impacts on behavioral and mental health at primary school ages, and substitution of the incidence of infections from primary school ages to low ages. The evidence suggests that the behavioral eﬀects are mostly driven by children from low socio-economic households. Day care usage aﬀects health care utilization and leads to a moderate reduction in health care costs.
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