Research Article

Normative Values of Peripapillary Retinal Nerve Fiber Layer Thickness in a Middle Eastern Population

Table 3

Multivariable regression models of peripapillary retinal nerve fiber layer (RNFL) thickness by area in a Middle Eastern population ( eyes).

VariablesB value95% CI value

Temporal<0.001
Age (years)−0.35−0.61 to −0.080.01
History of diabetes mellitus type 26−1 to 120.09
History of systemic hypertension114 to 170.002

Superior<0.001
Age (years)−0.12−0.37 to 0.140.4
History of diabetes mellitus type 2114 to 170.001
History of systemic hypertension−14−21 to −8<0.001

Nasal<0.001
History of diabetes mellitus type 2105 to 15<0.001
History of systemic hypertension−12−17 to −7<0.001

Inferior0.06
Age (years)−0.21−0.47 to 0.060.1
Refraction (spherical equivalent power)−2.5−5.3 to 0.20.07

Global<0.001
Age (years)−0.16−0.31 to −0.010.04
History of diabetes mellitus type 284 to 11<0.001
History of systemic hypertension−4.2−8.1 to −0.30.04

B value, regression coefficient; 95% CI, 95% confidence interval. B values represent the change in the dependent variables (i.e., pRNFL thickness by area) for each unit of change in the independent variables (i.e., predictors).