Outcome divided into “very good benefit” and not “very good benefit” for different preoperative situations. The result for all patients (n=1933) are shown for each preoperative variable as absolute figures (%). The relation between the outcome and the preoperative situation is shown as a two tailed p value using a Mann–Whitney U test
| Variable | Very good benefit | Not very good benefit | p Value |
|---|---|---|---|
| Age group | <0.001 | ||
| 20–49 | 26 (54.2) | 22 (45.8) | |
| 50–59 | 56 (60.9) | 36 (39.1) | |
| 60–69 | 130 (50.0) | 130 (50.0) | |
| 70–79 | 315 (39.3) | 486 (60.7) | |
| 80–89 | 219 (32.5) | 455 (67.5) | |
| 90–w | 17 (29.3) | 41 (70.7) | |
| Sex | 0.023 | ||
| Female | 487 (37.7) | 805 (62.3) | |
| Male | 276 (43.1) | 365 (56.9) | |
| Ocular comorbidity | <0.001 | ||
| No | 540 (43.7) | 695 (56.3) | |
| Yes | 223 (31.9) | 475 (68.1) | |
| Best corrected vision preoperatively, better eye | <0.001 | ||
| ⩽0.4 | 210 (34.8) | 394 (65.2) | |
| 0.5–0.7 | 251 (36.7) | 433 (63.3) | |
| ⩾0.8 | 302 (46.8) | 343 (53.2) | |
| Second eye surgery | <0.001 | ||
| First eye | 455 (36.1) | 807 (63.9) | |
| Second eye | 308 (45.9) | 363 (54.1) | |
| Other diseases | 0.479 | ||
| Yes | 506 (38.9) | 794 (61.1) | |
| No | 257 (40.6) | 376 (59.4) | |
| Home help | 0.007 | ||
| Yes | 160 (34.2) | 308 (65.8) | |
| No | 603 (41.2) | 862 (58.8) | |
| Subsidised travel by taxi | <0.001 | ||
| Yes | 160 (30.7) | 361 (69.3) | |
| No | 603 (42.7) | 809 (57.3) |