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Fact-finding survey on health literacy among Japanese predialysis chronic kidney disease patients: a multi-institutional cross-sectional study

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Abstract

Background

Low health literacy (HL) has been associated with poor chronic disease management and adverse outcomes. However, reports on HL in predialysis chronic kidney disease (CKD) patients are limited in Japan.

Methods

From August 2019 to February 2020, the European Health Literacy Survey (Japanese version) and a patient background survey (highest level of education, income, social activities, and exercise habit) were conducted on adult predialysis CKD patients. We compared clinical parameters in two groups according to the average HL score of a healthy Japanese population. In addition, a median value of 42 items was used as a cutoff for extracting CKD patient background factors associated with HL since HLS-EU-Q47 included five items related to physical activity and exercise.

Results

Valid responses were received from 200 patients. Median general HL index was 25.2 points. The high-HL group (≥ 25.3 points) showed a low proportion of male (56.7% vs. 70.9%, p = 0.038), high social activities (69.1% vs. 48.5%, p = 0.003), and high exercise habit (36.1% vs. 13.6%, p < 0.001). In the multivariate analysis, social activity [OR (95% CI); 2.12 (1.16–3.89), p = 0.015] and exercise habit [OR (95% CI); 2.39 (1.16–4.90), p = 0.018] were extracted as the only significant variable.

Conclusions

HL in Japanese predialysis CKD patients was associated with high social activity and exercise habit.

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Acknowledgements

We would like to thank Kazuhiro Nakayama of St. Luke’s International University for allowing us to use this Japanese version of the HLS-EU-Q47.

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Authors and Affiliations

  1. Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan

    Yohei Kita, Shinji Machida, Yugo Shibagaki & Tsutomu Sakurada

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  1. Yohei Kita
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  2. Shinji Machida
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  3. Yugo Shibagaki
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  4. Tsutomu Sakurada
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Corresponding author

Correspondence to Tsutomu Sakurada.

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Conflict of interest

All the authors have declared no competing interest.

Research involving animals

This article does not contain any studies with animals performed by any of the authors.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee at which the studies were conducted (IRB approval number 4436) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was not necessary because of the retrospective nature of the study. Thus, the need for individual written informed consent was waived. However, a declaration of data was published on the website (https://www.marianna-u.ac.jp/houjin/disclosure/clinical-research/marianna/file/ichiran.pdf. Accessed 15 June 2020). The study information was published on the internet since patients could use the division of graduate student affairs and research promotion websites to opt-out of the study if they did not want their data used for research purposes.

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Kita, Y., Machida, S., Shibagaki, Y. et al. Fact-finding survey on health literacy among Japanese predialysis chronic kidney disease patients: a multi-institutional cross-sectional study. Clin Exp Nephrol 25, 224–230 (2021). https://doi.org/10.1007/s10157-020-01982-w

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  • DOI: https://doi.org/10.1007/s10157-020-01982-w

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