Longitudinal associations between social support trajectories and quality of life mediated by depressive symptoms: A 10‐year cohort study of Wenchuan earthquake

Author:

Chen Xiao‐Yan12,Shi Xuliang3,Li Chao4,Fan Fang12ORCID

Affiliation:

1. Guangdong Key Laboratory of Mental Health and Cognitive Science, School of Psychology, Center for Studies of Psychological Application South China Normal University Guangzhou China

2. Key Laboratory of Brain, Cognition and Education Sciences Ministry of Education Guangzhou China

3. College of Education Hebei University Hebei China

4. Faculty of Medicine Autonomous University of Madrid Madrid Spain

Abstract

AbstractIntroductionPrevious studies on associations between social support and quality of life (QoL) have usually employed a variable‐centered approach, without considering individual variances in time‐varying changes in social support. This study explores trajectories of social support and whether depressive symptoms mediate associations between social support trajectories and QoL 10 years after an earthquake.MethodsSeven hundred and forty‐four Chinese adolescents exposed to the Wenchuan earthquake were surveyed on social support at 6‐, 18‐, and 24‐months and depressive symptoms at 30‐months postearthquake (T30m). They provided valid data on QoL after 10 years of the earthquake (T10y). The latent class growth analysis was used to estimate social support trajectories. Mediation analysis was then conducted to test whether depressive symptoms at T30m mediated associations between social support trajectories and QoL at T10y.ResultsThree trajectories of social support were identified: low decreasing (31.6%), moderate decreasing (55.4%), and persistent high (13.0%) groups. Depressive symptoms significantly mediated the effects of social support trajectories (relative to the low support trajectory) on future QoL (95% CIs: 0.70–1.78 and 1.41–3.37 for moderate decreasing and persistent high groups, respectively).ConclusionsSocial support shows individual differences over time. Moderate and high social support trajectories improve 10‐year QoL partly by reducing depressive symptoms. Therefore, interventions aimed at enhancing social support and reducing depressive symptoms may be more effective in enhancing QoL in the aftermath of disasters.

Publisher

Wiley

Subject

Psychiatry and Mental health,Developmental and Educational Psychology,Social Psychology,Pediatrics, Perinatology and Child Health

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