Skip to main content
. 2022 Oct 10;107(12):1873–1879. doi: 10.1136/bjo-2021-320469

Table 3.

Prevalence of hard drusen, soft drusen and hyperpigmentation on ultrawide field retinal images (weighted)

Age (years) Number at risk Centre Mid Far Full
Hard drusen
 All ≥55 5023 62.8 (61.0 to 64.7) 86.8 (85.4 to 88.1) 75.6 (74.0 to 77.2) 94.6 (93.7 to 95.4)
 <55 1115 58.6 (55.4 to 61.7) 85.2 (82.7 to 87.4) 76.9 (74.1 to 79.6) 94.4 (92.6 to 95.8)
 55–64 2392 57.0 (54.8 to 59.2) 86.4 (84.8 to 87.9) 77.2 (75.2 to 79.0) 94.9 (93.8 to 95.8)
 65–74 1971 64.6 (62.2 to 67.0) 87.8 (86.2 to 89.3) 77.0 (74.8 to 79.0) 94.7 (93.6 to 95.7)
 75–84 585 69.8 (65.2 to 74.0) 88.2 (84.9 to 91.0) 72.6 (68.2 to 76.6) 94.9 (92.8 to 96.6)
 ≥85 75 70.8 (52.3 to 85.2) 80.4 (64.3 to 91.4) 68.2 (52.7 to 81.2) 91.2 (80.3 to 97.2)
Soft Drusen
 All≥55 5023 5.6 (4.6 to 6.9) 3.2 (2.6 to 3.9) 3.7 (3.1 to 4.5) 8.6 (7.4 to 10.0)
 <55 1115 0.8 (0.3 to 1.7) 0.6 (0.2 to 1.3) 2.2 (1.2 to 3.5) 2.8 (1.7 to 4.2)
 55–64 2392 2.3 (1.7 to 3.1) 2.1 (1.5 to 2.8) 3.4 (2.5 to 4.4) 5.5 (4.4 to 6.7)
 65–74 1971 6.5 (5.2 to 8.0) 4.3 (3.2 to 5.5) 4.7 (3.6 to 6.0) 10.0 (8.4 to 11.8)
 75–84 585 10.0 (7.1 to 13.5) 4.5 (2.6 to 7.1) 4.2 (2.4 to 7.0) 12.8 (9.6 to 16.7)
 ≥85 75 10.2 (1.9 to 27.9) 1.3 (0.1 to 4.9) 0.0 10.2 (1.9 to 27.9)
Hyperpigmentation
 All≥55 5023 2.0 (1.4 to 2.9) 8.5 (7.1 to 10.2) 12.5 (10.9 to 14.2) 14.5 (12.8 to 16.4)
 <55 1115 0.8 (0.3 to 1.7) 2.1 (1.2 to 3.3) 3.2 (2.1 to 4.6) 4.6 (3.2 to 6.2)
 55–64 2392 0.9 (0.5 to 1.5) 3.9 (3.0 to 4.9) 6.1 (5.0 to 7.4) 7.6 (6.3 to 9.0)
 65–74 1971 1.9 (1.3 to 2.7) 8.9 (7.4 to 10.5) 13.5 (11.7 to 15.5) 15.5 (13.5 to 17.6)
 75–84 585 3.1 (1.6 to 5.6) 11.0 (8.0 to 14.6) 19.0 (15.2 to 23.4) 20.9 (16.8 to 25.4)
 ≥85 75 6.8 (1.5 to 18.4) 27.9 (13.4 to 46.8) 27.8 (13.3 to 46.9) 34.7 (17.9 to 54.7)

Table 3 shows the prevalence of hard, soft drusen and hyperpigmentation on ultrawide field retinal images (weighted) (eye level). Unweighted and weighted estimates are shown. Data were weighted by age and gender using the 2011 Census for Northern Ireland. The all category is restricted to those over 55 years to enable comparison with other studies who restrict definition of AMD to this age category.