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OBJECTIVES: To explore the impact of informal social support (ISS) on older health. METHODS: Multiple regression was used as the baseline regression, grouping regression was used to examine whether there were health effect differences among groups based on age and household registration, and insurance was selected to explore moderating effects of formal social support (FSS). RESULTS: First, economic support, accompanied support, and number of intimate contacts had significantly positive effects on older health except for care support's negative effects. Second, ISS had different health effects for different groups based on age and household registration. Third, FSS was a significant moderating for ISS. CONCLUSIONS: The government should emphasize and strengthen the supplementary role of ISS to FSS and promote the effective combination of the two, especially for the older who are high-age and rural, and further improve the role of care support.
Tang et al. (Sun,) studied this question.