Journal of Epidemiology (Sep 2024)

Progress Report of the Tohoku Medical Megabank Community-based Cohort Study: Study Profile of the Repeated Center-based Survey During Second Period in Miyagi Prefecture

  • Atsushi Hozawa,
  • Kumi Nakaya,
  • Naoki Nakaya,
  • Tomohiro Nakamura,
  • Mana Kogure,
  • Rieko Hatanaka,
  • Ippei Chiba,
  • Ikumi Kanno,
  • Junichi Sugawara,
  • Eiichi Kodama,
  • Yohei Hamanaka,
  • Tomoko Kobayashi,
  • Akira Uruno,
  • Naho Tsuchiya,
  • Takumi Hirata,
  • Akira Narita,
  • Akito Tsuboi,
  • Toru Tamahara,
  • Akihito Otsuki,
  • Maki Goto,
  • Makiko Taira,
  • Ritsuko Shimizu,
  • Kichiya Suzuki,
  • Taku Obara,
  • Masahiro Kikuya,
  • Hirohito Metoki,
  • Mami Ishikuro,
  • Inaho Danjoh,
  • Soichi Ogishima,
  • Satoshi Nagaie,
  • Naoko Minegishi,
  • Masahiro Hiratsuka,
  • Kazuki Kumada,
  • Ichiko Nishijima,
  • Takahiro Nobukuni,
  • Yumi Yamaguchi-Kabata,
  • Fuji Nagami,
  • Shigeo Kure,
  • Nobuo Fuse,
  • Kengo Kinoshita,
  • Yoko Izumi,
  • Shinichi Kuriyama,
  • Masayuki Yamamoto

DOI
https://doi.org/10.2188/jea.JE20230241
Journal volume & issue
Vol. 34, no. 9
pp. 434 – 443

Abstract

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Background: The purpose of this study was to report the basic profile of the Miyagi Prefecture part of a repeated center-based survey during the second period of the Tohoku Medical Megabank Community-Based Cohort Study (TMM CommCohort Study), as well as the participants’ characteristics based on their participation type in the baseline survey. Methods: The second period survey, conducted from June 2017 to March 2021, included participants of the TMM CommCohort Study (May 2013 to March 2016). In addition to the questionnaire, blood, urine, and physiological function tests were performed during the second period survey. There were three main ways of participation in the baseline survey: Type 1, Type 1 additional, or Type 2 survey. The second period survey was conducted in the same manner as the Type 2 survey, which was based on the community support center (CSC). Results: In Miyagi Prefecture, 29,383 (57.7%) of 50,967 participants participated in the second period survey. The participation rate among individuals who had visited the CSC was approximately 80%. Although some factors differed depending on the participation type in the baseline survey, the second period survey respondents in the Type 1 and Type 2 survey groups at baseline had similar traits. Conclusion: The second period survey of the TMM CommCohort Study provided detailed follow-up information. Following up on the health conditions of the participants will clarify the long-term effects of disasters and contribute to personalized prevention.

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