Table 1.

Baseline Demographics of 65 Participants with 4-Year Follow-Up on the Standard Testing Protocol (82% Focal Bleach, Test Spot at 5°)

Characteristic	Group 0	Group 1	Group 2	Group 3	Group SDD	P Value*
No.	34	9	16	5	1
Mean age (SD), yrs	72 (8.3)	69 (11)	67 (10)	77 (5.4)	84 (0)	0.20
Female gender, no. (%)	19 (29)	4 (6.2)	6 (9.2)	3 (4.6)	0 (0)	0.63
Race, no. (%)
American Indian/Alaskan Native	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)
Asian	2 (5.9)	0 (0)	1 (6.3)	0 (0)	0 (0)
Black	3 (8.8)	0 (0)	0 (0)	0 (0)	0 (0)
White	29 (85.3)	9 (100)	15 (93.8)	5 (100)	1 (100)

All P values shown are from Kruskal–Wallis analyses of variances.

SD = standard deviation; SDD = subretinal drusenoid deposits.

^*Group SDD not included in statistical analyses because n=1.