Full
Outline
To examine the association between trajectories of body roundness index (BRI) and impaired activities of daily living (ADL) among older adults in China.
Data were obtained from the China Health and Retirement Longitudinal Study (CHARLS). BRI was measured in 2011, 2013, and 2015, and latent class growth mixture modeling was used to identify longitudinal BRI trajectories. ADL impairment was assessed based on the 2017 (Wave 4) survey. Multivariable logistic regression models were employed to evaluate the associations between BRI trajectories and impairments in basic (BADL) and instrumental (IADL) activities of daily living. Subgroup analyses were conducted to explore potential effect modifications by sex, age, and chronic disease status.
A total of 3 157 individuals aged 60 years and above were included. Two distinct BRI trajectories were identified: low-stable group (87.6%) and high-stable group (12.4%). After adjusting for potential confounders, the high-stable group was significantly associated with BADL impairment (OR=1.82, 95% CI: 1.11-2.96), while the association with IADL impairment was positive but not statistically significant (OR=1.21, 95% CI: 0.89-1.66). No significant interactions were found in subgroup analyses.
A persistently high BRI trajectory is significantly associated with an increased risk of BADL impairment in older adults. Longitudinal BRI trajectories may serve as predictive indicators for functional decline, offering new insights for the early identification and intervention of functional impairment in aging populations.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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