Table 3.
Multivariable model for prediction of acute kidney injury in the derivation cohort
| Odds ratio | P | |
|---|---|---|
| Age (years) | < 0·001 | |
| 30 | 0·51 (0·38, 0·69) | |
| 50 | 0·72 (0·62, 0·83) | |
| 70 | 1·00 (reference) | |
| 90 | 1·40 (1·21, 1·62) | |
| Sex | 0·002 | |
| M | 1·00 (reference) | |
| F | 0·76 (0·63, 0·90) | |
| eGFR (ml per min per 1·73 m2) | < 0·001 | |
| 30 | 2·20 (1·74, 2·79) | |
| 60 | 1·00 (reference) | |
| 90 | 0·77 (0·69, 0·87) | |
| 120 | 1·02 (0·76, 1·36) | |
| ASA grade | < 0·001 | |
| 1 | 1·00 (reference) | |
| 2 | 1·26 (0·92, 1·73) | |
| 3 | 1·45 (1·03, 2·03) | |
| 4–5 | 2·81 (1·80, 4·40) | |
| Planned surgical approach | < 0·001 | |
| Open surgery | 1·00 (reference) | |
| Laparoscopic surgery | 0·76 (0·64, 0·90) | |
| Preoperative ACEi/ARB | 0·009 | |
| No | 1·00 (reference) | |
| Yes | 1·30 (1·07, 1·59) |
Values in parentheses are 95 per cent confidence intervals. Age and estimated glomerular filtration rate (eGFR) were modelled as continuous variables; therefore odds ratios are given for a selection of values compared with a baseline value. ACEi, angiotensin‐converting enzyme inhibitor; ARB, angiotensin II receptor blocker.