Table 3. Associations between mean global retinal nerve fiber layer thickness as measured by spectral domain optical coherence tomography (iVue SD-OCT) and ocular and systemic parameters in the Beijing Eye Study 2011 (multivariate analysis).

	P-Value	Regression Coefficient B	Standardized Coefficient Beta	95%CI of B		Variance Inflation Factor
Age (Years)	<0.001	−0.39	−0.30	−0.45	−0.32	1.34
Gender (Men/Women)	0.03	1.33	0.05	0.17	2.48	1.15
Axial Length (mm)	<0.001	−2.40	−0.21	−3.18	−1.62	2.65
Anterior Corn. Curvature Radius (mm)	0.01	3.33	0.07	0.67	5.98	1.59
Refractive Lens Power (Diopters)	<0.001	−0.58	−0.10	−0.91	−0.26	1.55
Optic Disc Area (mm2)	<0.001	3.28	0.10	1.74	4.71	1.18
Neuroretinal Rim Area (mm2)	<0.001	8.03	0.26	6.64	9.42	1.11
Subfoveal Choroidal Thickness (µm)	<0.001	0.02	0.15	0.011	0.023	1.53