Table 1.

Patient characteristics

ItemsAKI Recovery Group (n=4869)Non-AKI Group (n=4869)P Value
Men2768 (56.8%)2768 (56.8%)1.00
Age (yr)63.6±16.763.6±16.70.99
Premorbid risk
Charlson score3.02±2.023.02±2.090.57
Congestive heart failure564 (11.6%)525 (10.8%)0.22
Peripheral vascular disease79 (1.6%)59 (1.2%)0.10
Dementia129 (2.6%)120 (2.5%)0.61
Chronic obstructive pulmonary disease592 (12.2%)591 (12.1%)1.00
Rheumatologic disease75 (1.5%)113 (2.3%)0.006
Peptic ulcer682 (14%)683 (14%)1.00
Hemiplegia70 (1.4%)64 (1.3%)0.66
Tumor351 (7.2%)364 (7.5%)0.64
DM1608 (33%)1592 (32.7%)0.75
Moderate or severe liver disease349 (7.2%)398 (8.2%)0.07
CKD656 (13.5%)656 (13.5%)1.00
Advanced CKDa119 (2.4%)107 (2.2%)0.09
Index hospital comorbidity
Cardiovascular350 (7.2%)387 (7.9%)0.17
Respiratory920 (18.9%)897 (18.4%)0.57
Hepatic101 (2.1%)122 (2.5%)0.18
Neurologic85 (1.7%)102 (2.1%)0.24
Hematologic75 (1.5%)97 (2%)0.11
Metabolic130 (2.7%)100 (2.1%)0.05
Operative categories
Cardiothoracic137 (2.8%)139 (2.9%)0.95
Upper gastrointestinal40 (0.8%)84 (1.7%)<0.001
Lower gastrointestinal108 (2.2%)117 (2.4%)0.59
Hepatobiliary65 (1.3%)78 (1.6%)0.31
ICU admission during index hospitalization2995 (61.5%)3018 (62%)0.65
  • ICU, intensive care unit.

  • a Patients with creatinine more than 6 mg/dl with concomitant erythropoiesis-stimulating agents prescription.