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Article

Lifestyle Factors Associated with Undernutrition in Older People after the Great East Japan Earthquake: A Prospective Study in the Fukushima Health Management Survey

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Department of Physical Therapy, Fukushima Medical University School of Medical Sciences, Fukushima 960-8516, Japan
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Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
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Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
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Department of Radiation Life Sciences, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
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Department of Diabetes, Endocrinology and Metabolism, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
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Department of Nephrology and Hypertension, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
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Department of Gastroenterology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
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Department of Public Health, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
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Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
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Author to whom correspondence should be addressed.
Academic Editor: Paul B. Tchounwou
Int. J. Environ. Res. Public Health 2022, 19(6), 3399; https://doi.org/10.3390/ijerph19063399
Received: 29 December 2021 / Revised: 2 March 2022 / Accepted: 3 March 2022 / Published: 14 March 2022
We conducted a longitudinal examination to assess the relationship between lifestyle habits, including exercise habits, and the incidence of undernutrition after the Great East Japan Earthquake in March 2011. Of the 31,411 participants aged ≥60 years who lived in the municipalities’ evacuation areas before the disaster and had undergone health examinations, 17,622 persons with a body mass index of 20–25 kg/m2 were followed up through the FY 2017 (a mean follow-up of 6.9 years). The analysis involved 13,378 individuals who could be followed. The associations between undernutrition after the disaster and lifestyle factors were estimated via multivariable-adjusted analysis using the Cox proportional hazard regression model. The dependent variable was the proportion of undernutrition after the disaster, whereas independent variables included evacuation, exercise habits/physical activity, alcohol consumption, smoking, meals before bedtime, gastrointestinal surgery history, history of lifestyle-related diseases, and two or more subjective symptoms. In total, 1712 of the 13,378 participants were newly undernourished after the disaster. The statistically significant variables influencing the occurrence of undernutrition were non-evacuation (hazard ratio (HR), 1.31; 95% confidence index (CI) 1.17–1.47), poor exercise habits (HR, 1.14; 95% CI 1.03–1.50), and poor physical activity (HR, 1.12; 95% CI 1.01–1.25). Other significant related variables were drinking habits, surgical history, lifestyle-related diseases, and two or more subjective symptoms. These results suggest that regular exercise and/or physical activity might be important in preventing undernutrition following a disaster, regardless of sex, other lifestyle habits, or past medical history. View Full-Text
Keywords: older people; undernutrition; the Great East Japan earthquake; lifestyle factors; regular exercise; physical activity older people; undernutrition; the Great East Japan earthquake; lifestyle factors; regular exercise; physical activity
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MDPI and ACS Style

Okazaki, K.; Ohira, T.; Sakai, A.; Shimabukuro, M.; Kazama, J.J.; Takahashi, A.; Nakano, H.; Hayashi, F.; Nagao, M.; Yasumura, S.; Ohto, H.; Kamiya, K. Lifestyle Factors Associated with Undernutrition in Older People after the Great East Japan Earthquake: A Prospective Study in the Fukushima Health Management Survey. Int. J. Environ. Res. Public Health 2022, 19, 3399. https://doi.org/10.3390/ijerph19063399

AMA Style

Okazaki K, Ohira T, Sakai A, Shimabukuro M, Kazama JJ, Takahashi A, Nakano H, Hayashi F, Nagao M, Yasumura S, Ohto H, Kamiya K. Lifestyle Factors Associated with Undernutrition in Older People after the Great East Japan Earthquake: A Prospective Study in the Fukushima Health Management Survey. International Journal of Environmental Research and Public Health. 2022; 19(6):3399. https://doi.org/10.3390/ijerph19063399

Chicago/Turabian Style

Okazaki, Kanako, Tetsuya Ohira, Akira Sakai, Michio Shimabukuro, Junichiro J. Kazama, Atsushi Takahashi, Hironori Nakano, Fumikazu Hayashi, Masanori Nagao, Seiji Yasumura, Hitoshi Ohto, and Kenji Kamiya. 2022. "Lifestyle Factors Associated with Undernutrition in Older People after the Great East Japan Earthquake: A Prospective Study in the Fukushima Health Management Survey" International Journal of Environmental Research and Public Health 19, no. 6: 3399. https://doi.org/10.3390/ijerph19063399

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