Table 1 Comparison among patients according to RIFLE criteria
Parameter of interest | No acute kidney injury (n= 362) | Risk class (n= 165) | Injury class (n= 71) | Failure class (n= 80) | Loss or end-stage renal disease (n= 44) |
|---|---|---|---|---|---|
Mean age (years) ± SD | 57.89 ± 18.2 | 59.68 ± 18.4 | 57.14 ± 16.7 | 56.51 ± 21.3 | 63.09 ± 14.7 |
Sex, males (%) | 213 (58.8%) | 96 (58.2%) | 41 (57.7%) | 41 (51.3%) | 27 (61.4%) |
Mean APACHE II score ± SD | 10.68 ± 6.9 | 14.64 ± 7.6 | 19.7 ± 8.2 | 24.34 ± 8.1 | 16.91 ± 8 |
Mean PDR ± SD | 16.09 ± 15.8 | 24.33 ± 19.2 | 37.13 ± 23.7 | 49.45 ± 23.4 | 30.66 ± 21 |
Mean SOFA score ± SD | 3.39 ± 2.4 | 5.27 ± 3.3 | 7.15 ± 3.7 | 8.95 ± 3.4 | 5.39 ± 3.7 |
Need for inotropic support | 56 (15.5%) | 41 (24.8%) | 28 (39.4%) | 40 (50%) | 14 (31.8%) |
Need for renal support | 4 (1.1%) | 7 (4.2%) | 19 (26.8%) | 58 (72.5%) | 34 (77.3%) |
Need for mechanical ventilation | 66 (18.2%) | 43 (26.1%) | 28 (39.4%) | 32 (40%) | 15 (34.1%) |
Length of ICU stay, days | 4.53 ± 5.2 | 5.25 ± 5.1 | 4.46 ± 4.8 | 6.44 ± 6.5 | 5.68 ± 6.2 |
Length of hospital stay, days | 8.55 ± 7.1 | 9.2 ± 6.4 | 8.34 ± 7.1 | 10.76 ± 11.9 | 9.57 ± 7.1 |
ICU mortality | 27 (7.5%) | 26 (15.8%) | 18 (25.4%) | 31 (38.8%) | 9 (20.5%) |