Table 1.

Demographic and Clinical Characteristics by Self-Described Racial Groups

	African Descent, N= 297	European Descent, N= 359	PValue
Age, y	60.5 ± 13	65.6 ± 13	<0.0001
Sex
Male	97	161	0.0015
Female	200	198
% of African ancestry	79.6 ± 25.9	3.5 ± 13.4	<0.0001
Central corneal thickness, mm	533.1 ± 36.1	554.8 ± 38.1	<0.0001
Optic disc area, mm2	2.15 ± 0.5	1.96 ± 0.4	<0.0001
Retinal nerve fiber layer thickness, μm	88.7 ± 15.9	85.3 ± 15.2	0.0072
Diagnostic category:
Normal subjects	77	52
Glaucoma patients and suspects	220	307

Numbers are means ± SD or n (%).