The correlates of social capital and adherence to healthy lifestyle in patients with coronary heart disease

OBJECTIVE To investigate the correlates of social capital and adherence to healthy lifestyle in patients with coronary heart disease (CHD). METHODS This register-based, cross-sectional study consisted of individuals diagnosed with CHD at four community health service centers, Shanghai, China, between April and July 2016 (n=609). The sociodemographic characteristics, social capital, adherence to physical activity, and nutrition data were obtained through face-to-face interviews. Social capital was assessed by social participation, social networking, social support, social trust, and sense of belonging. Physical activity and nutrition were measured with the Health-Promoting Lifestyle Profile II. The independent two-sample t-test and Pearson's correlations were used to analyze associations among variables. Hierarchical multiple regression models were used to evaluate effects of social capital on adherence to physical activity and nutrition. RESULTS The average age of the sample was 60.87 (standard deviation [SD] =6.91), with 54.4% being male and 45.6% female. The average score of physical activity and nutrition were 2.38 (SD =0.59) and 2.78 (SD =0.50), respectively. The final model significantly explained 28.9% of variance in physical activity (F=34.96, P<0.001) and 30.5% of variance in nutrition (F=37.73, P<0.001). Most of the subdimensions of social capital were significantly associated with physical activity and nutrition, after controlling for marital status and education level. CONCLUSION The results suggested that social capital was the correlate of adherence to long-term healthy lifestyle, including physical activity and nutrition. These findings highlight the need to take into account social capital in developing intervention strategies to improve the adherence to the long-term healthy lifestyle for patients with CHD.