Social frailty and longitudinal risk of depressive symptoms in a Chinese population: the Rugao Longevity and Aging Study
- PMID: 33960060
- DOI: 10.1111/psyg.12696
Social frailty and longitudinal risk of depressive symptoms in a Chinese population: the Rugao Longevity and Aging Study
Abstract
Aim: To explore the cross-sectional and longitudinal associations between social frailty (SF) and incident depressive symptoms in a Chinese population.
Methods: SF was measured with 6 questions (6 points maximum; 0-1 = non-SF, 2-3 = pre-SF, 4-6 = SF). Depressive symptoms were defined as a score of ≥6 on the Geriatric Depression Scale. Compared to baseline, participants with a ≥2-point increase in the Geriatric Depression Scale score were considered to have worsening depressive symptoms.
Results: At baseline, among 1764 participants, 9.9% (n = 175) had depressive symptoms, 3.6% (n = 61) were SF, and 38.2% (n = 650) were pre-SF. The percentage of depressive symptoms increased with SF status from 5.1% (non-SF) to 12.9% (pre-SF), to 41.0% (SF). In cross-sectional analysis, after adjustments for multiple covariates, depressive symptoms were significantly associated with both pre-SF (odds ratio (OR) = 2.94, 95% confidence interval (CI) 2.01-4.32) and SF (OR = 16.70, 95% CI 8.80-31.71). During the 3-year follow-up period, 10.0% (n = 117) of the participants developed depressive symptoms. In longitudinal analyses, after multiple adjustments, SF and pre-SF were associated with a 2.31-fold (95% CI 1.10-4.88) and 1.58-fold (95% CI 1.05-2.38) increased risk of incidence of depressive symptoms, respectively. Among participants without depressive symptoms at baseline, 23.2% had worsening depressive symptoms, and SF was associated with increased risk of worsening depressive symptoms (OR = 2.07, 95% CI 1.18-3.65).
Conclusions: Our findings suggested that SF may be a predictor of depression among Chinese community-dwelling older adults. In addition, in elders with no depressive symptoms at baseline, those with SF had greater odds of worsening depressive symptoms 3 years later.
Keywords: depressive symptoms; elderly people; frailty; social factors.
© 2021 Japanese Psychogeriatric Society.
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