. Author manuscript; available in PMC: 2009 Oct 4.

Published in final edited form as: Ophthalmology. 2008 Jun 2;115(8):1352–1357.e2. doi: 10.1016/j.ophtha.2008.01.011

Table 1.

Characteristics of the Study Populations

Parameter/Group	Normal	PG	All	P Value^*
No. of subjects	89	89	198
No. of eyes^†	174	133	307
Age [Mean ± standard deviation (range)]	56±9 (40-76)	58±7 (41-71)	57±8 (40-76)	0.13
Female (% total)	69	61	65	0.35
Race (Caucasian)	94%	72%	83%	<0.0001

PG = perimetric glaucoma.

Based on comparing normal and PG groups.

^†

In the normal group, 4 participants had only one eye with signal strength score > 5.