Journal
JOURNAL OF EPIDEMIOLOGY
Volume 31, Issue 1, Pages 77-89Publisher
JAPAN EPIDEMIOLOGICAL ASSOC
DOI: 10.2188/jea.JE20190177
Keywords
child in poverty; child health; life course; longitudinal study; Japan
Categories
Funding
- Health Labour Sciences Research Grant, Comprehensive Research on Lifestyle Disease from the Japanese Ministry of Health, Labour and Welfare [H27-Jyunkankito-ippan-002]
- Japan Society for the Promotion of Science (JSPS KAKENHI) [16H03276, 16K21669, 17K13244]
- St. Luke's Life Science Institute Grants
- Japan Health Foundation
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The A-CHILD study has been conducted since 2015 to clarify the associations between socioeconomic factors and child health, provide data for political evaluation of the child-poverty agenda, and understand baseline profiles of participants through continuous surveys and observations. The valid response rate in the first wave survey was 80.1%, with 24.5% of households experiencing living difficulties.
Background: The Adachi Child Health Impact of Living Difficulty (A-CHILD) study has been conducted since 2015 to clarify the associations between socioeconomic factors and child health, as well as to accumulate data for political evaluation of the child-poverty agenda. This paper describes the purpose and research design of the A-CHILD study and the baseline profiles of participants, together with the future framework for implementing this cohort study. Methods: We have conducted two types of continuous survey: a complete-sample survey started in 2015 as a first wave study to target first-grade children in all public elementary schools in Adachi City, Tokyo, and a biennial fixed grade observation survey started in 2016 in selected elementary and junior high schools. Questionnaires were answered by caregivers of all targeted children and also by the children themselves for those in the fourth grade and higher. The data of A-CHILD also combined information obtained from school health checkups of all school-grade children, as well as the results from blood test and measurement of blood pressure of eight-grade children since 2016. Results: The valid responses in the first wave were 4,291 (80.1%). The number of households in living difficulties, such as low household income or material deprivation, stood at 1,047 (24.5%). Conclusions: The A-CHILD study will contribute to the clarification of the impact of poverty on children's health disparities and paves the way to managing this issue in the community.
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