Table 4.

Final regression model obtained by screening and excluding the variables that cause multicollinearity through stepwise regression.

Variable	Partial R2	P value	Parameter estimate
Intercept	-	-	1.081
Age	0.033	<.001	−0.011
Body surface area	0.130	<.001	1.532
rs9923231 AA	0.313	<.001	−0.807
rs9923231 GG	0.053	<.001	1.788
rs1057910 AG	0.010	.009	−1.061
rs1057910 AA	0.058	<.001	0.530
rs699664 AA	0.020	<.001	−0.321
The best regression model	0.617	<.01	-