Table 2.

Moderated multiple regression analysis to assess the moderating effect of dichotomous variables on the association between C-reactive protein (CRP) and health-related quality of life

Independent Variable	Dichotomous moderator		R	R2	Adjusted R2	R2 Change	F Change	P-value
CRP	Sex	Model 1	0.301	0.091	0.068	0.091	4.048	0.021
		Model 2	0.302	0.091	0.057	0.001	0.045	0.832
	Injury completeness	Model 1	.318	.101	0.079	0.101	4.541	0.014
		Model 2	0.337	0.114	0.080	0.013	1.159	0.285
	Plegia type	Model 1	0.298	0.089	0.066	0.089	3.956	0.023
		Model 2	0.299	0.090	0.055	0.001	0.054	0.817
Leptin	Sex	Model 1	0.103	0.011	-0.024	0.011	0.306	0.738
		Model 2	0.115	0.013	-0.040	0.003	0.144	0.706
	Injury completeness	Model 1	0.248	0.062	0.029	0.062	1.872	0.163
		Model 2	0.262	0.069	0.019	0.007	0.416	0.522
	Plegia type	Model 1	0.102	0.010	-0.024	0.010	0.297	0.744
		Model 2	0.123	0.015	-0.038	0.005	0.276	0.601

Dependent variable was set as total score of SF-36 questionnaire and the interaction item was calculated by multiplying independent variable and dichotomous moderator each time.