Associations of daily walking time with pneumonia mortality among elderly individuals with or without a medical history of myocardial infarction or stroke: Findings from the Japan collaborative cohort study

Shigekazu Ukawa, Wenjing Zhao, Hiroshi Yatsuya, Kazumasa Yamagishi, Naohito Tanabe, Hiroyasu Iso, Akiko Tamakoshi, Mitsuru Mori, Fumio Sakauchi, Yutaka Motohashi, Ichiro Tsuji, Yosikazu Nakamura, Haruo Mikami, Michiko Kurosawa, Yoshiharu Hoshiyama, Koji Tamakoshi, Kenji Wakai, Shinkan Tokudome, Koji Suzuki, Shuji HashimotoShogo Kikuchi, Yasuhiko Wada, Takashi Kawamura, Yoshiyuki Watanabe, Kotaro Ozasa, Tsuneharu Miki, Chigusa Date, Kiyomi Sakata, Yoichi Kurozawa, Takesumi Yoshimura, Yoshihisa Fujino, Akira Shibata, Naoyuki Okamoto, Hideo Shio

Research output: Contribution to journalArticle

Abstract

Background: The association between daily walking and pneumonia mortality, stratified by the presence of disease conditions, such as myocardial infarction (MI) or stroke, was investigated. Methods: The study participants were 22,280 Japanese individuals (9,067 men and 13,213 women) aged 65-79 years. Inverse propensity weighted competing risk model was used to calculate the hazard ratio (HR) and 95% confidence interval (CI) for pneumonia mortality. Results: After a median of 11.9 years of follow-up, 1,203 participants died of pneumonia. Participants who did not have a history of MI or stroke and who walked for 1 hour=day or more were less likely to die from pneumonia (HR 0.90; 95% CI, 0.82-0.98) than those walked for 0.5 hours=day. A similar inverse association of pneumonia and walking (0.5 hours=day) was observed among participants with a history of MI (HR 0.66; 95% CI, 0.48-0.90). Among the participants with a history of stroke, those who walked for 0.6-0.9 hours=day were less likely to die because of pneumonia (HR 0.65; 95% CI, 0.43-0.98). Conclusions: Regular walking for?1 hour=day may reduce the risk of pneumonia mortality in elderly individuals with or without cardiovascular disease history.

Original languageEnglish
Pages (from-to)233-237
Number of pages5
JournalJournal of epidemiology
Volume29
Issue number6
DOIs
Publication statusPublished - 06-2019

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All Science Journal Classification (ASJC) codes

  • Epidemiology

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Ukawa, S., Zhao, W., Yatsuya, H., Yamagishi, K., Tanabe, N., Iso, H., Tamakoshi, A., Mori, M., Sakauchi, F., Motohashi, Y., Tsuji, I., Nakamura, Y., Mikami, H., Kurosawa, M., Hoshiyama, Y., Tamakoshi, K., Wakai, K., Tokudome, S., Suzuki, K., ... Shio, H. (2019). Associations of daily walking time with pneumonia mortality among elderly individuals with or without a medical history of myocardial infarction or stroke: Findings from the Japan collaborative cohort study. Journal of epidemiology, 29(6), 233-237. https://doi.org/10.2188/jea.JE20170341