Abstract
Background and aims
This study aimed at investigating whether depression symptoms are associated with prevalent and incident physical frailty in Chinese older population.
Methods
We analyzed data of 1168 older Chinese adults aged 70 and above in the aging arm of the Rugao Longevity and Aging Study (RuLAS). Depressive symptoms (Geriatric Depression Scale ≥ 6) were assessed by the Geriatric Depression Scale. Frailty was defined using Fried phenotype criteria at baseline and 3-year survey.
Results
At baseline, 8.9% of the participants had depression symptoms. The prevalence of pre-frailty and frailty were 34.5% and 5.9%, respectively. The percentages of depressive symptoms increase from robust (5.3%) to pre-frail (11.2%), and then to frail (31.9%) groups. After adjustments of multiple covariates, depressive symptoms were associated with both prevalent pre-frailty (OR = 1.75, 95% CI 1.08–2.84) and prevalent frailty (OR = 5.64, 95% CI 2.85–11.14) at baseline. At 3-year survey, 9.3% participants reported the development of frailty. After multiple adjustments, depressive symptoms were associated with a 2.79-fold (95% CI 1.09–7.10) increased risk of 3-year incident frailty.
Conclusion
Depressive symptoms are associated with prevalent and incident frailty in Chinese older population. Together with the observations of the European populations, depressive symptoms may be a candidate risk factor of frailty.
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Acknowledgments
We acknowledge all participants involved in the present study.
Funding
This work was financially supported by Grants from the National Key R&D Program of China (2018YFC2000400, 2018YFC2002000), the National Natural Science Foundation of China (81571372, 81670465, 81600577), the Shanghai natural science Grant (16ZR1449400).
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The Human Ethics Committee of the School of Life Sciences, Fudan University, Shanghai, People’s Republic of China, approved the study.
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Written informed consent was obtained from all participants prior to the study.
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Zhang, N., Shi, GP., Wang, Y. et al. Depressive symptoms are associated with incident frailty in a Chinese population: the Rugao Longevity and Aging Study. Aging Clin Exp Res 32, 2297–2302 (2020). https://doi.org/10.1007/s40520-019-01409-x
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DOI: https://doi.org/10.1007/s40520-019-01409-x