Table 2 Baseline characteristics of patients with and those without AKIa
Variable | Patients with AKI (n= 2,846) | Patients without AKI (n= 5,793) | P value |
|---|---|---|---|
Mean age, years (±SD) | 66.4 (15.9) | 55.6 (18.5) | <0.0001 |
Males, n (%) | 1,672 (58.8) | 3,609 (62.3) | 0.002 |
Mean SAPS II score (±SD) | 50.2 (20.0) | 33.6 (16.9) | <0.0001 |
Mean APACHE II score (±SD) | 19.9 (7.1) | 12.9 (6.4) | <0.0001 |
Mean non-renal SOFA score (±SD) | 5.3 (3.2) | 3.6 (2.7) | <0.0001 |
Transfer from ward, n (%) | 1363 (47.9) | 2494 (43.1) | <0.0001 |
McCabe class, n (%) | |||
1 | 1,666 (58.5) | 4,074 (70.3) | <0.0001 |
2 | 959 (33.7) | 1,417 (24.5) | |
3 | 221 (7.8) | 302 (5.2) | |
Admission category, n (%) | |||
Medical | 2,043 (71.8) | 4,149 (71.6) | <0.0001 |
Scheduled surgery | 311 (10.9) | 865 (14.9) | |
Unscheduled surgery | 492 (17.3) | 779 (13.5) | |
Chronic coexisting conditions, n (%) | |||
Cardiac disease | 509 (17.9) | 497(8.6) | <0.0001 |
Respiratory disease | 366 (12.9) | 881 (15.2) | 0.004 |
Liver disease | 178 (6.3) | 288 (5.0) | 0.01 |
Immunodeficiency | 440 (15.5) | 688 (11.9) | <0.0001 |
Uncomplicated diabetes mellitus | 320 (11.2) | 431 (7.4) | <0.0001 |
Complicated diabetes mellitus | 148 (5.2) | 124 (2.1) | <0.0001 |