Mediating role of social support in dysphoria, despondency, and quality of life in patients undergoing maintenance hemodialysis

Table 8 The effect of dysphoria on quality of life and the mediating effect of social support

Model path	Standard regression equation	β	SE	t	P value
Step 1	Y1 = -0.869A	-0.869	0.087	-9.963	< 0.001
Step 2	M = -0.450A	-0.450	0.038	-11.998	< 0.001
Step 3	Y1 = -0.267A + 1.340M	-0.267	0.088	-3.046	0.003
		1.340	0.113	11.902	< 0.001
Step 1	Y2 = -0.823A	-0.823	0.090	-9.190	< 0.001
Step 2	M = -0.450A	-0.450	0.038	-11.998	< 0.001
Step 3	Y2 = -0.329A + 1.098M	-0.329	0.098	-3.371	< 0.001
		1.098	0.126	8.752	< 0.001

Note: Y₁ = Quality of life (physical component summary), Y₂ = Quality of life (mental component summary), M = Social support, and A = Dysphoria.