Table 3.

Subgroup analysis of the association between social contacts and depressive symptoms stratified by age, having a spouse, income, and labor status

Variables	Depressive symptoms
	Contact with relatives			Contact with neighbors			Contact with friends
	<Once a week		≥Once a week	<Once a week		≥Once a week	<Once a week		≥Once a week
	Adj. OR	95% CI	Adj. OR	Adj. OR	95% CI	Adj. OR	Adj. OR	95% CI	Adj. OR
Age (years)
65–69	1.13	0.96–1.33	1.00	1.20	1.01–1.43	1.00	1.19	1.00–1.40	1.00
70–74	1.11	0.96–1.29	1.00	1.10	0.94–1.30	1.00	1.01	0.87–1.17	1.00
75–79	1.15	0.98–1.35	1.00	1.22	1.01–1.49	1.00	1.04	0.88–1.24	1.00
≥80	1.14	0.96–1.36	1.00	1.55	1.28–1.87	1.00	0.98	0.81–1.18	1.00
Existence of spouse
Yes	1.13	0.99–1.28	1.00	1.13	0.98–1.30	1.00	1.19	1.05–1.36	1.00
No	1.12	0.99–1.27	1.00	1.33	1.17–1.52	1.00	0.94	0.83–1.07	1.00
Monthly income
Low	1.28	1.15–1.43	1.00	1.26	1.12–1.43	1.00	1.06	0.94–1.19	1.00
Lower-middle	0.95	0.80–1.12	1.00	1.26	1.06–1.51	1.00	1.03	0.87–1.22	1.00
Upper-middle	0.93	0.68–1.27	1.00	0.97	0.69–1.37	1.00	1.20	0.87–1.66	1.00
High	1.12	0.75–1.67	1.00	1.06	0.72–1.55	1.00	1.18	0.77–1.79	1.00
Labor status
Active	1.31	1.11–1.56	1.00	1.11	0.89–1.38	1.00	0.95	0.81–1.12	1.00
Non-active	1.08	0.98–1.20	1.00	1.24	1.11–1.39	1.00	1.10	0.98–1.22	1.00

OR: odds ratio, CI: confidence interval