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Research Article
Lifestyle Factors Associated With Undernutrition in Older People After the Great East Japan Earthquake. A Prospective Study
Kanako Okazaki
Department and Institution address:1-Hikarigaoka, Fukushima City, Fukushima, 960-1295, Japan
Corresponding Author
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Background: The aim of this study was to conduct a longitudinal examination to assess the relationship between lifestyle habits, including exercise habits, and the incidence of undernutrition after the Great East Japan Earthquake.
Methods: We included residents aged 60 years or more who lived in the evacuation area municipalities from 2008 to 2010 before the disaster. A total of 31,411 participants (14,350 men and 17,061 women) who underwent a physical examination during this period were followed-up through 2017. We estimated the associations between undernutrition after the disaster and lifestyle factors using a multivariate-adjusted analysis with a Cox proportional hazard regression model. The variables included the model were evacuation, exercise habits, meals before bedtime, history of gastrointestinal surgery, history of lifestyle-related diseases, and 2 or more subjective symptoms.
Results: In all, 1721 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, 1.31; 95% confidence interval 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 related variables were surgical history, lifestyle-related diseases, and two or more subjective symptoms. No statistically significant interactions with exercise habits were identified for each lifestyle factor.
Conclusions: These results suggest that regular exercise and/or maintaining physical activity might be important, regardless of sex, other lifestyle habits, or past medical history, in preventing undernutrition following a disaster.
Keywords
Older people, Undernutrition, the Great East Japan Earthquake, Lifestyle factors, Regular exercise, Physical activity
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This preprint is under consideration at BMC Geriatrics. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Lifestyle Factors Associated With Undernutrition in Older People After the Great East Japan Earthquake. A Prospective Study
Kanako Okazaki
Department and Institution address:1-Hikarigaoka, Fukushima City, Fukushima, 960-1295, Japan
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 17 Dec, 2020
No community comments so far
Reviewers invited
Invitations sent on 10 Dec, 2020
Editor assigned
On 10 Dec, 2020
Editor invited
On 10 Dec, 2020
Submission checks complete
On 10 Dec, 2020
First submitted
On 03 Dec, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Geriatrics & Gerontology
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: The aim of this study was to conduct a longitudinal examination to assess the relationship between lifestyle habits, including exercise habits, and the incidence of undernutrition after the Great East Japan Earthquake.
Methods: We included residents aged 60 years or more who lived in the evacuation area municipalities from 2008 to 2010 before the disaster. A total of 31,411 participants (14,350 men and 17,061 women) who underwent a physical examination during this period were followed-up through 2017. We estimated the associations between undernutrition after the disaster and lifestyle factors using a multivariate-adjusted analysis with a Cox proportional hazard regression model. The variables included the model were evacuation, exercise habits, meals before bedtime, history of gastrointestinal surgery, history of lifestyle-related diseases, and 2 or more subjective symptoms.
Results: In all, 1721 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, 1.31; 95% confidence interval 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 related variables were surgical history, lifestyle-related diseases, and two or more subjective symptoms. No statistically significant interactions with exercise habits were identified for each lifestyle factor.
Conclusions: These results suggest that regular exercise and/or maintaining physical activity might be important, regardless of sex, other lifestyle habits, or past medical history, in preventing undernutrition following a disaster.
Figure 1
Figure 1
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