Social capital, health and life satisfaction in 50 countries.

We explored links between social capital and self-rated health and life satisfaction in a diverse sample of rich and developing countries. A four-factor measure of social capital was developed using data on 69,725 adults in 50 countries that were collected in the World Values Survey. Multilevel analyses showed links between country social capital and health and life satisfaction. However, cross-level interactions indicated that the benefits of social capital were greater in women than men, in older adults and in more trusting, affiliated individuals. Social inequalities in the contributions of social capital to population health are worthy of further study.