Associations of health literacy with dental care use and oral health status in Japan

Abstract Background The concept of health literacy has gained prominence in the context of oral health. In Japan, curative dental care is generally under universal health coverage, while preventive dental care requires effort. We used this situation to test the hypothesis that high health literacy i...

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Main Authors: Keiko Murakami, Jun Aida, Shinichi Kuriyama, Hideki Hashimoto
Format: Article
Language:English
Published: BMC 2023-06-01
Series:BMC Public Health
Subjects:
Online Access:https://doi.org/10.1186/s12889-023-15866-7
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author Keiko Murakami
Jun Aida
Shinichi Kuriyama
Hideki Hashimoto
author_facet Keiko Murakami
Jun Aida
Shinichi Kuriyama
Hideki Hashimoto
author_sort Keiko Murakami
collection DOAJ
description Abstract Background The concept of health literacy has gained prominence in the context of oral health. In Japan, curative dental care is generally under universal health coverage, while preventive dental care requires effort. We used this situation to test the hypothesis that high health literacy is associated with preventive dental care use and good oral health status, but not with curative dental care use, in Japan. Methods A questionnaire survey was conducted from 2010 to 2011 among residents aged 25–50 years in Japanese metropolitan areas. Data from 3767 participants were used. Health literacy was measured using the Communicative and Critical Health Literacy Scale, and the total score was categorized into quartiles. Poisson regression analyses with robust variance estimators were conducted to examine the associations of health literacy with curative dental care use, preventive dental care use, and good oral health, adjusted for covariates. Results The percentages of curative dental care use, preventive dental care use, and good oral health were 40.2%, 28.8%, and 74.0%, respectively. Health literacy was not associated with curative dental care use; the prevalence ratio (PR) of the highest relative to the lowest quartile of health literacy was 1.04 (95% confidence interval [CI], 0.93–1.18). High health literacy was associated with preventive dental care use and good oral health; the corresponding PRs were 1.17 (95% CI, 1.00–1.36) and 1.09 (95% CI, 1.03–1.15), respectively. Conclusions These findings may provide clues for the design of effective interventions to promote preventive dental care use and improve oral health status.
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spelling doaj.art-d664523a5b31416f85444f2845a62c062023-06-11T11:27:53ZengBMCBMC Public Health1471-24582023-06-012311910.1186/s12889-023-15866-7Associations of health literacy with dental care use and oral health status in JapanKeiko Murakami0Jun Aida1Shinichi Kuriyama2Hideki Hashimoto3Tohoku Medical Megabank Organization, Tohoku UniversityDepartment of Oral Health Promotion, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental UniversityTohoku Medical Megabank Organization, Tohoku UniversityDepartment of Health and Social Behavior, School of Public Health, The University of TokyoAbstract Background The concept of health literacy has gained prominence in the context of oral health. In Japan, curative dental care is generally under universal health coverage, while preventive dental care requires effort. We used this situation to test the hypothesis that high health literacy is associated with preventive dental care use and good oral health status, but not with curative dental care use, in Japan. Methods A questionnaire survey was conducted from 2010 to 2011 among residents aged 25–50 years in Japanese metropolitan areas. Data from 3767 participants were used. Health literacy was measured using the Communicative and Critical Health Literacy Scale, and the total score was categorized into quartiles. Poisson regression analyses with robust variance estimators were conducted to examine the associations of health literacy with curative dental care use, preventive dental care use, and good oral health, adjusted for covariates. Results The percentages of curative dental care use, preventive dental care use, and good oral health were 40.2%, 28.8%, and 74.0%, respectively. Health literacy was not associated with curative dental care use; the prevalence ratio (PR) of the highest relative to the lowest quartile of health literacy was 1.04 (95% confidence interval [CI], 0.93–1.18). High health literacy was associated with preventive dental care use and good oral health; the corresponding PRs were 1.17 (95% CI, 1.00–1.36) and 1.09 (95% CI, 1.03–1.15), respectively. Conclusions These findings may provide clues for the design of effective interventions to promote preventive dental care use and improve oral health status.https://doi.org/10.1186/s12889-023-15866-7Curative dental care useHealth literacyJapanOral healthPreventive dental care use
spellingShingle Keiko Murakami
Jun Aida
Shinichi Kuriyama
Hideki Hashimoto
Associations of health literacy with dental care use and oral health status in Japan
BMC Public Health
Curative dental care use
Health literacy
Japan
Oral health
Preventive dental care use
title Associations of health literacy with dental care use and oral health status in Japan
title_full Associations of health literacy with dental care use and oral health status in Japan
title_fullStr Associations of health literacy with dental care use and oral health status in Japan
title_full_unstemmed Associations of health literacy with dental care use and oral health status in Japan
title_short Associations of health literacy with dental care use and oral health status in Japan
title_sort associations of health literacy with dental care use and oral health status in japan
topic Curative dental care use
Health literacy
Japan
Oral health
Preventive dental care use
url https://doi.org/10.1186/s12889-023-15866-7
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