Table 2.
Cox regression models predicting time to a) recurrence, b) mortality, c) non recurrent operation (presumed contralateral)
| Dependent variable | Recurrence | Mortality | Contralateral operation | |||
|---|---|---|---|---|---|---|
| HR (95% CI) | p value | HR (95% CI) | p value | HR (95% CI) | p value | |
| Type of operation | ||||||
| Open | Referent | Referent | Referent | |||
| Laparoscopic | 1.83 (1.61, 2.08) | < 0.001 | 0.87 (0.82, 0.92) | < 0.001 | 0.85 (0.78, 0.94) | 0.001 |
| Age | 1.01 (1.00, 1.01) | < 0.001 | 1.11 (1.11, 1.11) | < 0.001 | 1.01 (1.01, 1.00) | < 0.001 |
| Gender | ||||||
| Male | Referent | Referent | Referent | |||
| Female | 0.42 (0.31, 0.56) | < 0.001 | 0.83 (0.79, 0.88) | < 0.001 | 0.47 (0.41, 0.53) | < 0.001 |
| Socioeconomic deprivation | ||||||
| SIMD quintile 1 | Referent | Referent | Referent | |||
| SIMD quintile 2 | 1.11 (0.95, 1.3) | 0.194 | 0.85 (0.82, 0.88) | < 0.001 | 0.98 (0.91, 1.06) | 0.684 |
| SIMD quintile 3 | 1.06 (0.87, 1.25) | 0.43 | 0.74 (0.71, 0.77) | < 0.001 | 0.96 (0.91, 1.04) | 0.426 |
| SIMD quintile 4 | 1.19 (1.02, 1.39) | 0.032 | 0.67 (0.64, 0.70) | < 0.001 | 1.03 (0.96, 1.12) | 0.362 |
| SIMD quintile 5 | 1.18 (1.01, 1.38) | 0.036 | 0.61 (0.58, 0.64) | < 0.001 | 1.02 (0.95, 1.1) | 0.485 |
| Bilateral primary procedurea | 2.53 (2.19, 2.88) | < 0.001 | 1.04 (0.98, 1.10) | 0.197 | 0.64 (0.57, 0.73) | < 0.001 |
| Year of index procedure* | 0.98 (0.97, 0.98) | < 0.001 | 0.97 (0.97, 0.98) | < 0.001 | 0.96 (0.95, 0.96) | < 0.001 |
*Since 1996 (the referent year)
aReferent is unilateral repair