Table 4 Proportion of patients reporting at least one complication by operation
Surgery type | NHS | ISTC | Adjusted odds ratio | 95% CI | P-value |
|---|---|---|---|---|---|
N (%) | N (%) | ||||
Cataract surgery | 58 (11.5) | 9 (3.9) | 0.32 | 0.14 to 0.70 | 0.004 |
Hernia repair | 79 (24.4) | 8 (16.7) | 0.46 | 0.32 to 0.66 | <0.001 |
Varicose vein | 83 (41.5) | 13 (36.1) | 0.75 | 0.42 to 1.3 | 0.3 |
Hip replacement | 87 (33.9) | 41 (29.1) | 0.87 | 0.52 to 1.5 | 0.6 |
Knee replacement | 112 (39.6) | 39 (24.5) | 0.43 | 0.27 to 0.69 | <0.001 |