Effects of physical activity, social capital on positive emotions in older adults-A study based on data from the 2022 CFPS survey.

In contrast, the mediating effect of individual social capital did not reach statistical significance ( B = 0.007, SE = 0.166, β = 0.008, 95% CI [−0.001, 0.015]), and the confidence intervals contained zero values, suggesting that the mediating role of individual social capital was unstable or interfered with by sample heterogeneity.

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