Table 3.

Results of multiple linear regressions^∗ of the total corneal spherical aberrations and anterior corneal spherical aberrations in the astigmatism group, the control group, and the total enrolled patients.

		Astigmatism group			Control group			Total
		Coefficient	Beta	P value	Coefficient	Beta	P value	Coefficient	Beta	P value
Total SA	Age	0.005	0.521	<0.001	0.005	0.444	<0.001	0.005	0.478	<0.001
	AL	−0.007	−0.139	<0.001	−0.008	−0.155	<0.001	−0.007	−0.147	<0.001
	CCT	—	—	—	<0.001	−0.027	0.045	0	−0.027	0.009
Anterior SA	Age	0.004	0.445	<0.001	0.004	0.361	<0.001	0.004	0.4	<0.001
	AL	−0.005	−0.117	<0.001	−0.007	−0.148	<0.001	−0.006	−0.135	<0.001
	CCT	<0.001	−0.056	0.002	<0.001	−0.051	<0.001	<0.001	−0.053	<0.001

^∗Anterior corneal astigmatism was removed as a factor in all regressions. Beta = standardized coefficient; total SA = total corneal spherical aberration; anterior SA = anterior corneal spherical aberration; AL = axial length; CCT = central corneal thickness.