The relationship between corneal biomechanical parameters and treatment outcomes of orthokeratology lenses

BMC Ophthalmology

Table 3 The correlated factors inhibiting axial elongation after OK treatment

Variables	Bivariate correlations*		Multiple linear regression^∆
Variables	correlation coefficients	P	coefficients	P
Age, year	-0.440	<0.001	-0.041	0.001
ARTh	0.452	<0.001	0.001	0.001
whole eye movement maximum, ms	0.238	0.031
PachySlope, um	-0.412	<0.001
CBI	-0.331	0.002

OK Orthokeratology; ARTh Ambrósio’s relational thickness to the horizontal profile; CBI Corvis Biomechanical Index.
^∆the regression line: the growth of axial length = -0.42 + 0.001 * ARTh - 0.041 * age
*Pearson’s correlation

ISSN: 1471-2415