Associations of social isolation with sleep duration and sleep quality in the elderly: Mediating influence of depression

Table 4 The mediating effects of depression and anxiety on social isolation, sleep behaviors

	Total effect, OR1 (95%CI)	Direct effect, OR (95%CI)	Indirect effect, OR (95%CI)	Mediated (%)
Sleep duration
Depression	1.53 (1.32-1.77)	1.49 (1.29-1.73)	1.02 (1.01-1.04)	5.68
Anxiety	1.49 (1.29-1.73)	1.49 (1.29-1.73)	1.00 (0.99-1.00)	-
Sleep quality
Depression	1.36 (1.12-1.64)	1.32 (1.09-1.59)	1.03 (1.01-1.05)	9.87
Anxiety	1.32 (1.09-1.59)	1.32 (1.09-1.59)	1.00 (1.00-1.00)	-

¹Multivariate adjusting variables as model 3 in Table 2.

-: Anxiety was not taken into KHB analysis as the mediation effects were not significant.