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

Table 9 The effect of despondency on quality of life and the mediating effect of social support

Model path	Standard regression equation	β	SE	t	P value
Step 1	Y1 = -0.896B	-0.896	0.084	-10.709	< 0.001
Step 2	M = -0.412B	-0.412	0.038	-10.891	< 0.001
Step 3	Y1 = -0.372B + 1.274M	-0.372	0.082	-4564	< 0.001
		1.274	0.107	11.888	< 0.001
Step 1	Y2 = -0.717B	-0.717	0.090	-7.945	< 0.001
Step 2	M = -0.412B	-0.412	0.038	-10.891	< 0.001
Step 3	Y2 = -0.232B + 1.178M	-0.232	0.093	-2.483	0.014
		1.178	0.123	9.590	< 0.001

Note: Y₁ = Quality of life (physical component summary); Y₂ = Quality of life (mental component summary); M = Social support; B = Despondency.