Thinner Central Corneal Thickness is Associated with a Decreased Parapapillary Vessel Density in Normal Tension Glaucoma

Table 3

Confounding factors associated with central corneal thickness in the NTG group evaluated via linear regression analysis.

Variable	Coefficient (95% CI)	value^a
Age	−0.129 (−0.921, 0.145)	0.152
Sex	−0.003 (−12.048, 11.669)	0.975
DM	0.051 (−10.061, 18.171)	0.571
HTN	−0.073 (−18.638, 7.786)	0.418
AL	0.003 (−4.949, 5.139)	0.970
VF MD	−0.002 (−0.896, 0.876)	0.982
VF MD change	0.117 (−0.716, 2.669)	0.255
VF PSD	−0.181 (−2.662, -0.032)	0.045
VF PSD change	0.033 (−1.905, 2.628)	0.752
VD RPC	0.134 (−0.194, 1.404)	0.137
MVD Sup whole	−0.030 (−1.216, 0.864)	0.738
MVD Sup parafovea	−0.031 (−1.158, 0.816)	0.732
MVD Deep whole	−0.015 (−1.372, 1.159)	0.868
MVD Deep parafovea	0.028 (−0.975, 1.338)	0.757
RNFL	0.124 (−0.125, 0.700)	0.170
GCC	0.072 (−0.292, 0.685)	0.428

^aAnalyzed with univariate linear analysis. DM: diabetes mellitus, HTN: hypertension; AL: axial length; VF MD: visual field mean deviation; VF PSD: visual field pattern standard deviation; VD: vessel density; RPC: radial peripapillary capillary network; MVD sup: superficial macular vessel density; MVD deep: deep macular vessel density; RNFL: retinal nerve fiber layer; GCC: ganglion cell complex.