Table 1.

Demographics and baseline ophthalmic measurements from African descent and European descent individuals within diagnostic groups

	Healthy Eyes				Glaucoma Suspect Eyes				Glaucoma Eyes				ANOVA*
	AD	ED	All	P- value	AD	ED	All	P- value	AD	ED	All	P- value	P-v alue
Number of patients	27	42	69		54	72	126		47	43	90
Number of eyes	42	82	124		94	133	227		95	82	177
Sex, % female	74	73	73.5	0.40	70	62	66	0.03	55	51	53	0.02	0.03
Age at baseline (years)	64 ± 12	54 ± 12	59 ± 12	0.01	68 ± 11	68 ± 10	68 ± 11	0.70	67 ± 9	73 ± 12	70 ± 11	0.01	<0.001
Median Number of visits	3 (3, 4)	5 (3, 9)	5 (3,9)	0.007	6 (3, 10)	4 (3, 9)	5 (3,10)	0.20	8 (3, 10)	8 (4, 10)	8 (3,10)	0.30	0.01
Mean Followup time (years)	2.9 ± 1.2	1.9 ± 1.2	2.4 ± 1.22	<0.001	2.8 ± 1.2	2.5 ± 1.2	2.6 ± 1.2	0.14	3.5 ± 0.8	3.2 ± 1.04	3.35 ± 1.01	0.01	0.007
Axial length (mm)	23.7 ± 0.9	23.7 ± 0.8	23.7 ± 0.85	0.50	24.04 ± 1.04	24.1 ± 1.0	24.07 ± 1.01	0.70	23.8 ± 1.3	23.8 ± 1.2	23.8 ± 1.25	0.04	0.05
Disc area (mm2)	2.08 ± 0.33	2.05 ± 0.41	2.07 ± 0.35	0.62	2.10 ± 0.41	2.03 ± 0.52	2.06 ± 0.48	0.39	2.17 ± 0.5	2.12 ± 0.62	2.15 ± 0.53	0.33	0.43
VF Mean deviation (dB)	0.22 (−1.43, 2.1)	−0.44 (−2.36, −2.29)	−0.11 (−2.36, 2.1)	0.02	−0.17 (−4.8, −2.7)	0.1 (−3.9, 2.7)	−0.03 (−4.8,2.7)	0.27	−7.95 (−33.69, −0.51)	−8.3 (−29.17, −.67)	−8.3 (−33.69, −0.51)	0.40	<0.001
CCT (μm)	528.5 ± 31.5	561.3 ± 38.6	544.9 ± 35.4	<0.001	535.5 ± 42.3	553.4 ± 37.7	544.4 ± 41.2	0.001	525.0 ± 37.0	573.4 ± 41.0	549.2 ± 40.0	0.02	0.006
Mean IOP during follow-up (mmHg)	14.3 ± 2.4	14.5 ± 2.8	14.4 ± 2.6	0.60	16.0 ± 4.2	17.1 ± 4.2	16.55 ± 4.2	0.06	14.8 ± 3.5	13.8 ± 3.8	14.3 ± 3.6	0.07	0.007

Abbreviations: VF, visual field; CCT, central corneal thickness, IOP, intraocular pressure. Variability measurements are ± SD, ranges or 95 percent confidence intervals. Wilcoxon rank sum test P-values reported representing the differences between AD and ED eyes.

^*P-values represent differences across diagnostic groups.