Table 2 Comparison of results between random effect model and fixed effect model
Risk factor | Random effect model | Fixed effect model |
|---|---|---|
OR/MD (95%CI) | OR/MD (95%CI) | |
ICU stay | 3.24 (0.18, 6.31) | 2.04 (1.30, 2.79) |
Age | 4.40 (2.06, 6.73) | 4.05 (2.99, 5.10) |
Preoperative renal insufficiency | 2.50 (1.04, 6.04) | 2.04 (1.37, 3.02) |
Cardiopulmonary bypass duration | 19.54 (6.34, 32.74) | 19.00 (12.18, 25.83) |
Surgery duration | 44.88 (5.99, 83.78) | 35.32 (21.39, 49.24) |
Mechanical ventilation time | 1.14 (0.34, 1.94) | 1.07 (0.89, 1.25) |
Acute physiology and chronic health evaluation score | 2.67 (0.37, 4.98) | 3.15 (2.36, 3.93) |
Postoperative renal insufficiency | 2.82 (1.40, 5.68) | 2.45 (1.75, 3.43) |
Hypoxemia | 3.56 (1.70, 7.44) | 2.69 (2.07, 3.48) |