Table 1.
Socio-demographic and clinical characteristics (whole study and subset population)
| Full | Subset | |
|---|---|---|
| Total number of patients N (%) | 756 | 524 |
| Age in years–median (Range) | 85 (54–100) | 85 (54–99) |
| Sex | ||
| Female N (%) | 499 (66) | 355 (67.7) |
| Male N (%) | 257 (34) | 169 (32.3) |
| Ethnicity N (%) | ||
| British | 704 (93.1) | 493 (94.1) |
| Any other White | 10 (1.3) | 4 (0.8) |
| Mixed ethnicity | 32 (1.3) | 7 (1.3) |
| Not stated | 4.2 | 20 (3.8) |
| Diabetes N (%) | ||
| No diabetes | 157 (20.8) | 113 (21.6) |
| Type 1 diabetes | 2 (0.3) | 1 (0.2) |
| Type 2 diabetes | 81 (10.7) | 58 (11.1) |
| Diabetes but type not known | 3 (0.4) | 2 (0.4) |
| Status not known (missing) | 67.9 | 66.8 |
| Smoking N (%) | 638 (84.4) | |
| Ex-smoker | 34 (4.5) | 22 (4.2) |
| Smoker | 48 (6.3) | 40 (7.6) |
| Never smoked | 36 (4.8) | 23 (4.4) |
| Index of multiple deprivation N (%) | ||
| Quintile 1 (most deprived) | 34 (4.49) | 22 (4.20) |
| Quintile 2 | 86 (11.38) | 60 (11.45) |
| Quintile 3 | 134 (17.72) | 90 (17.18) |
| Quintile 4 | 186 (24.60) | 126 (24.04) |
| Quintile 5 (least deprived) | 316 (41.80) | 226 (43.13) |
| Distance (home to eye unit) N (%) | ||
| Near (<10 kma) | 413 (54.62) | 288 (54.96) |
| Far (>10 km) | 343 (45.37) | 236 (45.03) |
akm kiolmeters