Overview of the Japan children's study 2004-2009; Cohort study of early childhood development

Zentaro Yamagata, Tadahiko Maeda, Tokie Anme, Norihiro Sadato, Hideaki Koizumi, Yoko Anji, Yuka Shiotani, Mizue Iwasaki, Aya Kutsuki, Misa Kuroki, Naho Ichikawa, Tomoyo Morita, Haruka Koike, Yusuke Morito, Shunyue Cheng, Hiraku Ishida, Hisakazu Yanaka, Daisuke Tanaka, Kumiko Namba, Tamami FukushiHiroshi Toyoda, Shihoko Kimura-Ohba, Akiko Sawada, Kevin K.F. Wong, Yoichi Sakakihara, Hideo Kawaguchi, Toyojiro Matsuishi, Shunya Sogon, Kiyotaka Tomiwa, Tomonari Awaya, Sigeyuki Matuzawa, Shoji Itakura, Masako Okada, Yoshihiro Komada, Hatsumi Yamamoto, Noriko Yamakawa, Motoki Bonno, Mariko Y. Momoi, Takanori Yamagata, Hirosato Shiokawa, N Saito Daisuke N Saito, Hitoshi Uchiyama, Tohru Ozaki, Tamiko Ogura, Hiroko Ikeda, Koichi Negayama, Kayako Nakagawa, Kanehisa Morimoto, Katsutoshi Kobayashi, Tatsuya Koeda, Toshitaka Tamaru, Ayumi Seki, Shinako Terakawa, Ariko Takeuchi, Yukuo Konishi, Osamu Sakura, Masatoshi Kawai, Sonoko Egami, Takahiro Hoshino, Yuko Yato

Research output: Contribution to journalReview article

5 Citations (Scopus)

Abstract

Background: There are still a lot of unknown aspects about the childhood development of sociability which are based on neuroscientific basis. Purpose of the Japan Children's Study (JCS) was to verify the normal process of child development of sociability; the trajectory and factors related development of sociability, and to collect findings and integrate the knowledge to make the plan of long-term and large scale cohort study. Methods: A child cohort study underway in Japan since 2005. There are the cohort study including a infant cohort study at age of 4 months to 30 months and a preschool cohort study at age of 5 years old to 8 years old. Questionnaires, direct observation of children and cognitive testing were performed. Results: In infant cohort study, 465 infants were recruited at 4 months and 367 children were followed up to 30 months, follow up rate was 78.9% and in the preschool cohort study, total 192 children (112 at 2005 and 80 at 2007) at age of 5 years old and 169 followed up to 6 years (follow up rate was 88.0%), and 79 children were followed up to 8 years old (follow up rate was 70.5%) old. Several new measurements to evaluate child sociability were developed. Some factors related to development of child sociability were found for example the 'praise' was related to child sociability in cohort study based on neuroscience findings. Conclusions: Though the trajectory of child sociability development were not clarified, some significant factors related to development of sociability, and the basic findings to conduct a long-term and large scale cohort study were provided.

Original languageEnglish
Pages (from-to)S397-S403
JournalJournal of epidemiology
Volume20
Issue numberSUPPL.2
DOIs
Publication statusPublished - 2010

Keywords

  • Cohort study
  • Development
  • Neuroscience
  • Sociability

ASJC Scopus subject areas

  • Epidemiology

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    Yamagata, Z., Maeda, T., Anme, T., Sadato, N., Koizumi, H., Anji, Y., Shiotani, Y., Iwasaki, M., Kutsuki, A., Kuroki, M., Ichikawa, N., Morita, T., Koike, H., Morito, Y., Cheng, S., Ishida, H., Yanaka, H., Tanaka, D., Namba, K., ... Yato, Y. (2010). Overview of the Japan children's study 2004-2009; Cohort study of early childhood development. Journal of epidemiology, 20(SUPPL.2), S397-S403. https://doi.org/10.2188/jea.JE20100018