Table 2.

Baseline participant-level demographic data of the study sample by treatment group.

	Low Energy SLT (N=203)	Standard Energy SLT (N=215)
Age (yr), mean (SD)	62.3 (12.9)	62.7 (11.4)
Race, n (%)
White	135 (66.5)	146 (67.9)
Black or African American	51 (25.1)	46 (21.4)
Asian	4 (2.0)	8 (3.7)
Other/Declined	13 (6.4)	15 (7.0)
Ethnicity, n (%)
Hispanic or Latino	17 (8.4)	19 (8.8)
Not Hispanic or Latino	179 (88.2)	189 (87.9)
Declined to answer	7 (3.4)	7 (3.3)
Sex, n (%)
Female	117 (57.6)	118 (54.9)
Male	86 (42.4)	97 (45.1)

SD = standard deviation, SLT = selective laser trabeculoplasty