Journal
OBESITY REVIEWS
Volume 22, Issue 1, Pages -Publisher
WILEY
DOI: 10.1111/obr.13104
Keywords
children and adolescents; human capital; obesity and overweight; systematic review
Categories
Funding
- Health Foundation [809008]
- MRC [MC_PC_19009] Funding Source: UKRI
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The impact of childhood overweight and obesity on human capital development, particularly in the education domain, is more evident at older ages of exposure measurement, with girls experiencing larger negative effects compared to boys. Future research should focus on understanding the pathways through which childhood obesity affects human capital development in order to support policy interventions and mitigate these impacts.
Current evidence of the impact of childhood obesity on human capital development does not point in a consistent direction, and its interpretation is challenging. We carried out a systematic review of studies from high-income countries that used robust causal inference approaches to assess the impact of childhood overweight and obesity on outcomes typically linked to human capital development in economics. Global Health, Medline and EconLit were used to search for peer-reviewed papers. Three reviewers independently assessed study quality using the Newcastle-Ottawa Scale. Nineteen papers representing 22 studies met the inclusion criteria. Included studies were categorized based on three components of human capital: cognitive performance (n= 18), measured through test scores; educational attainment (n= 3), through grade progression and college completion; and labour market outcomes (n= 1), through wages. We find that childhood overweight and obesity hinder education outcomes, with effects mostly observed at older ages of exposure measurement (12+ years). Girls with overweight and obesity experienced larger negative effects and more often than boys. Future research should elucidate the pathways through which childhood obesity impacts human capital development, to support policies that may mitigate those impacts, thus averting social costs that are currently widespread, increasing and unaccounted for.
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