Association between illness perception and depression in colorectal cancer patients: Chain mediating effects of self-efficacy and post-traumatic growth

Table 3 Regression analysis of the mediation model

Predictor	Depression				Self-efficacy				Posttraumatic growth				Depression
	B	SE	t value	95%CI	B	SE	t value	95%CI	B	SE	t value	95%CI	B	SE	t value	95%CI
Age	0.384	0.333	1.153	(-3.176 to 0.972)	-2.074	0.559	-3.706c	(-3.176 to -0.972)	-1.962	0.822	-2.385a	(-3.581 to -0.342)	-0.238	0.310	-0.766	(-0.848 to 0.372)
Gender	-1.747	0.440	-3.962c	(-0.233 to 2.678)	1.222	0.739	1.652	(-0.233 to 2.678)	1.719	1.067	1.611	(-0.380 to 3.820)	-1.353	0.400	-3.380c	(-2.141 to -0.565)
Primary caregiver	0.040	0.267	0.151	(-0.179 to 1.588)	0.704	0.449	1.568	(-0.179 to 1.588)	-1.493	0.647	-2.306a	(-2.767 to -0.218)	0.148	0.244	0.610	(-0.331 to 0.629)
Illness perception	0.400	0.036	10.972c	(-0.571 to -0.330)	-0.450	0.061	-7.364c	(-0.571 to -0.330)	-0.578	0.095	-6.037c	(-0.767 to -0.389)	0.257	0.038	6.774c	(0.182 to 0.332)
Self-efficacy									0.235	0.085	2.774b	(0.068 to 0.403)	-0.243	0.032	-7.576c	(-0.307 to -0.180)
Posttraumatic growth													-0.047	0.022	-2.152a	(-0.091 to -0.004)
R	0.614				0.530				0.557				0.707
R²	0.377				0.281				0.311				0.500
F	43.285				27.836				25.589				47.185

^aP < 0.05.

^bP < 0.01.

^cP < 0.001.

CI: Confidence interval.