• Akiko Morimoto, Chie Koh, Risa Yasumoto, Hideaki Furuki, Kaori Watanabe, Chikage Tsuzuki, and Nao Sonoda.
• Graduate School of Nursing, Osaka Prefecture University, Osaka, Japan. Electronic address: morimoto@omu.ac.jp.
• Prev Med. 2022 Aug 1; 161: 107112.

AbstractWe assessed the relationship between health literacy and participation in health checkups among middle-aged Japanese community residents. Additionally, we explored the health information sources related to participation in health checkups among those with low, medium, and high health literacy. This mail survey using a self-administered questionnaire was conducted in 2020 and included 33,902 community residents with National Health Insurance (NHI), aged 40-64 years from five cities in Osaka Prefecture, Japan. Of these, 12,446 (36.7%) agreed to participate in the survey. After exclusion of those with regular visits to medical institutions and those with missing data, the analysis included 3582 participants. Health literacy was measured by the Communicative and Critical Health Literacy (CCHL) scale, and participants were classified into three groups (low, medium, and high health literacy groups) by the tertiles of CCHL scale score. After adjusting for confounding factors, the multivariable-adjusted odds ratios for non-participation in health checkups were 1.20 (95% CI 1.01-1.43, p = 0.039) in the medium health literacy group and 1.47 (95% CI 1.20-1.80, p < 0.001) in the low health literacy group compared with the high health literacy group. Additionally, some health information sources were associated with participation in health checkups in the medium and high health literacy groups, whereas none of the health information sources were associated with participation in health checkups in the low health literacy group. We believe that it is important to develop materials and interventions aimed at low health literacy populations to promote participation in health checkups.Copyright © 2022 Elsevier Inc. All rights reserved.

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