Table 5. Stepwise regression of intraretinal layer thickness on IQ in ASD group.

Step	Model	β	SE	t	P	RMSE	R2	Adjusted R2
1	(Intercept)	31.613	30.620	1.032	0.308
	INL	3.986	1.818	2.193	0.034	21.900	0.110	0.087

β indicates the regression coefficient. IQ, score of full-scale intelligence quotient of WISC-IV; ASD, autism spectrum disorder; SE, standard error; RMSE, root mean square error; INL, the thickness of the inner nuclear layer; WISC-IV, Wechsler Intelligence Scale for Children, Fourth Edition.