. Author manuscript; available in PMC: 2013 Dec 7.

Published in final edited form as: Am J Ophthalmol. 2011 Oct 21;153(3):10.1016/j.ajo.2011.08.022. doi: 10.1016/j.ajo.2011.08.022

Table 4.

GDxECC-Group. Association between corneal biomechanical parameters (corneal hysteresis and corneal resistance factor) and retinal nerve fiber layer thickness (dependent variable) in a multivariable regression model with other ocular and demographic variables.

Average RNFL thickness	Coefficient (RSE)	P Value
CH (mm Hg)	0.49 (0.32)	0.13
Age (year)	0.05 (0.04)	0.22
CCT (μm)	0.03 (0.01)	<0.01
Axial length (mm)	0.24 (0.39)	0.54

CRF (mm Hg)	0.17 (0.30)	0.56
Age (year)	−0.06 (0.04)	0.14
CCT (μm)	0.04 (0.01)	<0.01
Axial length (mm)	0.17 (0.38)	0.65

Abbreviations: CCT = Central corneal thickness; CH = Corneal hysteresis; CRF = Corneal resistance factor; RNFL = Retinal Nerve Fiber Layer; RSE = Robust standard error