Table 2.

Characteristics of patients with no kidney injury, subacute kidney injury, and AKI

CharacteristicNo Kidney Injurys-AKIAKINo Kidney Injury versus s-AKIs-AKI versus AKI
Patients, n (%)43,493 (87.8)574 (1.1)5,451 (11.0)
Age (IQR) (yr)60 (43–70)68 (59–75)70 (60–78)<0.0010.11
Men (%)53.559.962.90.0020.15
Baseline creatinine (IQR) (mg/dl)0.78 (0.65–0.91)0.76 (0.60–0.86)0.77 (0.66–1.02)0.070.02
Patients with baseline data available, n (%)27,335 (62.8)248 (43.2)2,605 (47.7)<0.0010.04
Medical units (%)
 Cardiology6.134.76.020.180.22
 Endocrinology3.734.012.840.730.11
 Emergency medicine5.235.6811.890.71<0.001
 Gastroenterology9.879.768.931.000.49
 Nephrology2.385.058.11<0.0010.01
 Neurology1.631.571.271.000.55
 Oncology3.856.17.410.010.27
 Psychiatry1.491.740.440.59<0.001
 Respiratory medicine2.866.793.69<0.001<0.001
 Other 2.614.882.490.0020.002
Surgical units
 Cardiac surgery0.843.313.38<0.0011.00
 General surgery13.1212.3710.330.660.13
 Neurosurgery4.120.72.26<0.0010.01
 Obstetrics and gynecology15.616.275.39<0.0010.38
 Orthopedics7.675.752.380.09<0.001
 Otorhinolaryngology3.49.062.94<0.001<0.001
 Thoracic surgery2.251.741.030.560.13
 Urology5.315.5710.030.77<0.001
 Vascular surgery3.932.967.540.27<0.001
 Other3.522.441.630.200.17
ICU admission (%)8.011.618.2<0.001<0.001
  • s-AKI, subacute kidney injury; IQR, interquartile range; ICU, intensive care unit.