ArticleBMJ open2022
Body weight and lifestyle changes under the COVID-19 pandemic in Japan: a cross-sectional study from NIPPON DATA2010.
Article in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Difference in excess mortality during the COVID-19 pandemic depending on marital status in Japan.PloS one · 2026Article
- Influence of infection control for COVID-19 on nutrition in relatively healthy Japanese HD patients: a retrospective observational study.Clinical and experimental nephrology · 2025Observational
- Impact of the COVID-19 pandemic on the incidence of cardiometabolic risk factors among workers: results from the Japan Epidemiology Collaboration on Occupational Health study.Journal of epidemiology and community health · 2025Article
- Associations between mental health and lifestyle changes during the COVID-19 pandemic in a general Japanese population: NIPPON DATA2010.Environmental health and preventive medicine · 2025Article
- Article
- Relationship between physical activity and locomotive syndrome among young and middle-aged Japanese workers.Journal of occupational health · 2024Article
- Article
- The global agenda on obesity: what does this mean for Singapore?Singapore medical journal · 2023Article
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Authors and funding
14 authors.
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Abstract
objectivesThe COVID-19 pandemic has had an impact on people's lifestyles such as causing body weight changes. This study examined associations among lifestyle changes and body weight during the COVID-19 pandemic among the Japanese population.
designA cross-sectional study.
settingA nationwide survey of the general Japanese population.
participantsTotal participants were 2244 men and women, of which 911 young/middle-aged (30-69 years old) and 899 older adults (70 years and older) were analysed separately. OUTCOME: Changes in lifestyle (physical activity, dietary habits and alcohol intake) and body weight during the first wave of COVID-19 in spring 2020.
resultsUnder the COVID-19 pandemic, 24.1% and 10.1% of Japanese respondents reported weight gain and reduction, respectively. Multivariable-adjusted stepwise logistic regression analyses revealed that the young/middle-aged respondents in the group increased body weight, weight gain was significantly associated with decrease in physical activity (OR 4.01, 95% CI 2.83 to 5.69) and both increase (OR 5.82, 95% CI 3.85 to 8.80) and decrease (OR 2.73, 95% CI 1.52 to 4.93) in eating between meals. In the group that decreased body weight, body weight reduction was significantly associated with increase in physical activity (OR 3.66, 95% CI 1.94 to 6.90), decrease in eating between meals (OR 5.97, 95% CI 3.11 to 11.48) and both increase and decrease in alcohol intake in the young/middle age. For the older adults, body weight gain was higher in women than in men, and significantly associated with higher quartile of regional COVID-19 infection, decrease in physical activity (OR 2.98, 95% CI 1.98 to 4.49), increase in home-cooked meals and increase in eating between meals (OR 4.22, 95% CI 2.55 to 6.99). On the other hand, body weight reduction was significantly associated with decreases in physical activity (OR 2.63, 95% CI 1.62 to 4.27), home-cooked meals and eating between meals (OR 1.95, 95% CI 1.05 to 3.61) in the older adults.
conclusionChanges in physical activity and eating between meals were associated with body weight change under the COVID-19 pandemic among Japanese.
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