Impact of Social Capital on 8-Year Mortality Among Older People in 34 Danish Municipalities

Objectives: To analyze the impact of social capital measures (bonding, bridging, and linking) on all-cause mortality at 8-year follow-up among older people aged 75 and 80 at baseline. Method: Prospective cohort study on preventive home visits including 2,863 seventy-five-year-olds and 1,171 eighty-year-olds in 34 Danish municipalities. The associations of the three aspects of social capital measures with mortality were tested in Cox regression models on time to death. Results: In the 80-year-old cohort significant associations were seen between mortality and both bridging (hazards ratio (HR) = 1.24, 95% CI [1.07, 1.45]) and linking (HR = 1.21, 95% CI [1.03, 1.43]), but the associations attenuated when controlling for relevant confounders. None of the social capital measures were associated with mortality among the 75-year-olds. Conclusion: The measures of social capital used in the present study include key aspects of social capital that are associated to mortality in older populations via physical activity and mobility disability.