Body mass index trajectories and mortality risk in Japan using a population-based prospective cohort study : the Japan Public Health Center-based Prospective Study
© The Author(s) 2023. Published by Oxford University Press on behalf of the International Epidemiological Association..
BACKGROUND: Recent studies have found that long-term changes in weight during adulthood are associated with a high risk of mortality. The objective of this study was to characterize body mass index (BMI) trajectories during adulthood and to examine the association between BMI trajectories and risk of death in the Japanese population.
METHODS: The data were extracted from Japan Public Health Center-based Prospective Study-a population-based prospective cohort study in Japan with participants aged 40-69 years followed over 20 years. The participants were categorized into multiple BMI trajectory groups using the latent class growth model. The Cox proportional-hazards model was conducted using all-cause mortality and cause-specific mortality as outcomes and the identified BMI trajectory groups as a predictor. In total, 65 520 participants were included in the analysis.
RESULTS: Six BMI trajectory groups were identified: underweight stable (Group 1), low-to-high normal (Group 2), high-to-low normal (Group 3), normal to overweight (Group 4), overweight to normal (Group 5) and normal to obese (Group 6). Our Cox models showed a higher hazard (risk) of all-cause mortality among participants in the BMI-declining groups [Group 3, adjusted hazard ratio (aHR): 1.10, 95% CI: 1.05-1.16; Group 5, aHR: 1.16, 95% CI: 1.08-1.26], underweight stable group (Group 1, aHR: 1.27, 95% CI: 1.21-1.33) and normal to obese group (Group 6, aHR: 1.22, 95% CI: 1.13-1.33) than Group 2 (low-to-high normal BMI trajectory).
CONCLUSIONS: Stable underweight and weight loss were associated with a high risk of mortality, both of which were uniquely observed in a Japanese population.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:53 |
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| Enthalten in: |
International journal of epidemiology - 53(2024), 1 vom: 01. Feb. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yamamoto, Nao [VerfasserIn] |
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| Links: |
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| Themen: |
Body mass index trajectory |
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| Anmerkungen: |
Date Completed 14.02.2024 Date Revised 14.02.2024 published: Print Citation Status MEDLINE |
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| doi: |
10.1093/ije/dyad145 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 100 | 1 | |a Yamamoto, Nao |e verfasserin |4 aut | |
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| 500 | |a published: Print | ||
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| 520 | |a © The Author(s) 2023. Published by Oxford University Press on behalf of the International Epidemiological Association. | ||
| 520 | |a BACKGROUND: Recent studies have found that long-term changes in weight during adulthood are associated with a high risk of mortality. The objective of this study was to characterize body mass index (BMI) trajectories during adulthood and to examine the association between BMI trajectories and risk of death in the Japanese population | ||
| 520 | |a METHODS: The data were extracted from Japan Public Health Center-based Prospective Study-a population-based prospective cohort study in Japan with participants aged 40-69 years followed over 20 years. The participants were categorized into multiple BMI trajectory groups using the latent class growth model. The Cox proportional-hazards model was conducted using all-cause mortality and cause-specific mortality as outcomes and the identified BMI trajectory groups as a predictor. In total, 65 520 participants were included in the analysis | ||
| 520 | |a RESULTS: Six BMI trajectory groups were identified: underweight stable (Group 1), low-to-high normal (Group 2), high-to-low normal (Group 3), normal to overweight (Group 4), overweight to normal (Group 5) and normal to obese (Group 6). Our Cox models showed a higher hazard (risk) of all-cause mortality among participants in the BMI-declining groups [Group 3, adjusted hazard ratio (aHR): 1.10, 95% CI: 1.05-1.16; Group 5, aHR: 1.16, 95% CI: 1.08-1.26], underweight stable group (Group 1, aHR: 1.27, 95% CI: 1.21-1.33) and normal to obese group (Group 6, aHR: 1.22, 95% CI: 1.13-1.33) than Group 2 (low-to-high normal BMI trajectory) | ||
| 520 | |a CONCLUSIONS: Stable underweight and weight loss were associated with a high risk of mortality, both of which were uniquely observed in a Japanese population | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Japan Public Health Center-based Prospective Study | |
| 650 | 4 | |a body mass index trajectory | |
| 650 | 4 | |a latent class growth model | |
| 700 | 1 | |a Ejima, Keisuke |e verfasserin |4 aut | |
| 700 | 1 | |a Mestre, Luis M |e verfasserin |4 aut | |
| 700 | 1 | |a Owora, Arthur H |e verfasserin |4 aut | |
| 700 | 1 | |a Inoue, Manami |e verfasserin |4 aut | |
| 700 | 1 | |a Tsugane, Shoichiro |e verfasserin |4 aut | |
| 700 | 1 | |a Sawada, Norie |e verfasserin |4 aut | |
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