ArticleAging clinical and experimental research2025
Association between subjective cognitive decline and life-space mobility in a community-based elderly adults: a moderated mediation model of depression and perceived social support.
Article in Aging clinical and experimental research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Circulating PBX1 and age-related sarcopenia phenotypes: metabolic mediation analyses in a community-based study.European geriatric medicine · 2026Article
- Perceived health exposure to mega sporting event and depressive symptoms in older adults: the mediating roles of physical activity and loneliness.BMC psychiatry · 2026Article
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6 authors.
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Abstract
backgroundLife-space mobility (LSM) is a critical health indicator in older adults, the mechanisms underlying the relationship between subjective cognitive decline (SCD) and LSM remain unclear.
aimsThis study examined depression as a mediator between SCD and LSM, and assessed whether perceived social support (PSS) moderates the relationship between SCD and depression among Chinese community-dwelling older adults.
methodsWe seek to elucidate psychosocial mechanisms of the SCD-LSM link and inform targeted intervention strategies. Drawing on a face-to-face interview sample of 287 community-dwelling aged, this cross-sectional study utilised a moderated mediation analysis. Key constructs were evaluated by the Subjective Cognitive Decline Questionnaire-9, 15-item geriatric depression scale, Perceived Social Support Scale, the Life Space Assessment, respectively.
resultsThe results showed that SCD was negatively associated with LSM (β = -0.213, p < 0.001). Mediation analysis indicated an indirect association between SCD and LSM through depression (indirect effect = -1.868, 95% CI [-2.825, -1.029]), accounting for 41.6% of the total association. Furthermore, PSS was identified as a significant moderator in the relationship between SCD and depression (β = -0.088, p < 0.05), with a stronger association observed among older adults with lower PSS levels. The interaction term contributed a unique incremental variance of ΔR² = 0.0086 to the model. DISCUSSION: Establishing a social support system holds promise for improving life-space mobility and alleviating depression among community-dwelling older adults with subjective cognitive decline, thereby enhancing their well-being.
conclusionA negative association between SCD and LSM was observed, with depression partially mediating this relationship. Importantly, PSS demonstrated a statistically significant moderating effect on the relationship between SCD and depression, although the effect size was small.
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