Table 2

Results of Poisson regression analyses with a robust variance estimator investigating the associations between individual-level social capital and depressive symptoms among participants in the Khánh Hòa Cardiovascular Study, Vietnam (2019–2020)

	Number of participants with/without depressive symptoms	Model 1		Model 2		Model 3
	Number of participants with/without depressive symptoms	PR	95% CI	PR	95% CI	PR	95% CI
Cognitive social capital
Low	142/789	1	Ref.	1	Ref.	1	Ref.
Middle	101/922	0.56	0.46 to 0.70	0.59	0.48 to 0.74	0.59	0.49 to 0.71
High	98/948	0.39	0.31 to 0.48	0.39	0.31 to 0.49	0.39	0.31 to 0.48
Structural social capital
No	238/1638	1	Ref.	1	Ref.	1	Ref.
Yes	103/1021	0.70	0.56 to 0.86	0.74	0.61 to 0.90	0.74	0.61 to 0.90

The associations in relation to cognitive social capital and structural social capital were examined separately. Model 1 was adjusted for age and sex. Model 2 was further adjusted for education, marital status, employment and household income. Model 3 included the same variables as in Model 2 and also included current smoking, alcohol consumption, physical activity, body mass index and self-reported history of a serious disease (ie, cancer and/or diseases of the circulatory system).
PR, prevalence ratio; Ref, reference category.