Table 2 Progression counts and rates (from baseline up to the end of follow-up time) by baseline (BL) AMD severity score
Study eye’s own BL severity scoreFellow eye's BL severity scoreAREDSAREDS2
N totalN progressed (%)N totalN progressed (%)
1–31–3268361 (2)364 (1)
4–631123 (7)490 (0)
7–8152 (13)40 (0)
9+11623 (20)307 (23)
Any3123109 (3)11911 (9)
4–61–331152 (17)494 (8)
4–6684258 (38)68482 (12)
7–814284 (59)25948 (19)
9+156117 (75)21991 (42)
Any1292511 (40)1211225 (19)
7–81–3156 (40)41 (25)
4–614296 (69)25995 (37)
7–8290246 (85)914432 (47)
9+152137 (90)323229 (71)
Any599485 (81)1500757 (50)
Overall50171105 (22)2830993 (35)
  • For AREDS, the follow-up length was up to 12.6 yr with mean follow-up of 10.3 yr; for AREDS2, the follow-up length was up to 5.9 yr with mean follow-up of 4.8 yr.