Table 1.

Results of the Multivariable Model Investigating the Relationship between Rates of Visual Field Loss and Putative Predictive Factors for Progression

Predictive Factor	Coefficient	Estimate	95% CI	P
Mean IOP*	γ1	−0.028	−0.045 to −0.011	<0.001
(Mean IOP)∧2	γ2	−0.0035	−0.005 to −0.002	<0.001
CCT,† per 100 μm	γ3	0.21	0.04 to 0.38	0.015
Optic disc progression‡	γ4	−0.35	−0.51 to −0.19	<0.001
Optic disc progression × follow-up time§	γ5	0.083	0.029 to 0.136	0.003
Constant	γ0	0.08	−0.001 to 0.162	0.054

CI, confidence interval.

^*IOP values were centered on their mean value in the population (19 mm Hg).

^†CCT measurements were centered on their mean value in the population (543 μm).

^‡Optic disc progression was a categorical variable with value 1 if there was evidence of optic disc progression on stereophotographs and zero otherwise.

^§Follow-up time corresponds to the follow-up until first detection of optic disc progression.