Table 2.

Mixed model of predictive factors for baseline intraocular pressure (IOP)

Variables*	Estimate (SE)	P-Value
Age (10 year increments)	−0.67 (0.20)	0.0010
Sex (female vs. male)	−2.35 (0.44)	<0.0001
Glaucoma diagnosis (vs. Primary open angle glaucoma, n=550)
Pigmentary (n=28)	+0.05 (1.05)	0.9591
Pseudoexfoliative (n=29)	+5.40 (1.03)	<0.0001
Pupillary response (defect vs. normal)	+2.24 (0.72)	0.0018
Center (vs. overall mean effect)		0.0002
Lower than mean IOP:
Center B	−2.07 (1.25)
Center E	−2.03 (0.69)†
Center M	−2.03 (0.86)†
Center C	−0.86 (1.18)
Center J	−0.73 (0.80)
Center F	−0.47 (0.68)
Center L	−0.39 (1.49)
Higher than mean IOP:
Center K	+0.17 (0.71)
Center N	+0.90 (0.80)
Center G	+0.96 (0.68)
Center I	+1.25 (0.69)
Center A	+1.65 (0.66)†
Center D	+1.77 (0.82)
Center H	+1.88 (0.73)†

^*All variables listed were entered into a single, multivariable model. Day, order, and day × order interaction (P<0.002) were also included in the model. See Table 1 for day and order effects.

^†Significantly different from the overall mean baseline IOP