Analysis of the chain mediation effect between intergenerational support and mental health of older adults in urban China: a structural equation model

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Abstract
Background: This study aimed investigate the impact of intergenerational support on the mental health of older adults in urban China. It also sought to evaluate the chain mediation effect of attitudes toward younger people and willingness to interact with younger people within a non-familial context between intergenerational support and mental health. Methods: Data were derived from a community survey that adopted quota sampling in mainland China in 2022 (N = 780). Structural equation modeling was used to analyze the data, and the bootstrap technique was used to test the mediation effect. Results: A significant positive association was found between intergenerational support and the mental health of older adults in urban China (B = 0.852, 95% confidence interval CI [0.157,1.617]). Intergenerational support had a specific indirect effect on mental health through older adults’ attitudes toward younger people within a non-familial context (B = 0.665, 95% CI [0.443,1.046]). There was a chain mediation effect (B = 0.126, 95% CI [0.069,0.224]) in relation to attitudes toward younger people and the willingness to interact with younger people between intergenerational support and mental health. Mediation accounted for 44.44% of the total effects in the model. Conclusion: These findings help identify modifiable factors that can improve the mental health of older adults. In line with the proposed serial multiple mediation model, this study provides theoretical and practical insights concerning the synergistic effect of intergenerational support at the family level and intergenerational interaction at the community level. Policy and social service implications are also discussed.

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