Baseline characteristics for the 110 468 study eyes
| Variable | Category | N (% of total) |
| Age | Mean (SD): 78.84 (7.01) Median (IQR): 78.98 (73.58–83.99) | 76 910 (100) |
| Sex | Female | 46 019 (60) |
| Male | 30 866 (40) | |
| Unknown/unspecified | 25 (0) | |
| Ethnicity | British | 25 505 (33) |
| Unknown/unspecified | 49 954 (65) | |
| Other | 1451 (2) | |
| Co-pathologies recorded on the date of cataract surgery | None | 70 094 (63) |
| At least 1 recorded* | 40 374 (36) | |
| Age-related macular degeneration | 10 841 (9) | |
| Amblyopia | 1260 (1) | |
| Brunescent/white cataract | 3792 (3) | |
| Corneal pathology | 2603 (2) | |
| Diabetic retinopathy | 4574 (4) | |
| Glaucoma | 10 215 (9) | |
| High myopia | 3247 (3) | |
| Inherited eye disease | 96 (0) | |
| No fundal view/vitreous opacities | 812 (1) | |
| Central nervous system disease | 372 (0) | |
| Other macular pathology | 933 (1) | |
| Other retinal vascular pathology | 161 (0) | |
| Previous laser refractive surgery | 3 (0) | |
| Pars plana vitrectomy | 691 (1) | |
| Previous retinal detachment surgery | 906 (1) | |
| Previous trabeculectomy | 469 (0) | |
| Pseudoexfoliation/phacodonesis | 1359 (1) | |
| Retinal vascular occlusion | 845 (1) | |
| Uveitis/synaechiae | 821 (1) | |
| Vitrectomy | 131 (0) | |
| Vitreous opacification | 636 (1) | |
| Other | 3760 (3) |
*Individual co-pathology frequency is reported as number and proportion of total eyes with at least one record of co-pathologies. Please note that one eye may have record of more than one co-pathology.