Table 2.

Factors associated with AKI: Univariate analysis

VariableGroup 1 (No AKI)Group 2 (AKI)P
Age (yr)63.8 (11.4)69.1 (10.7)<0001
Female gender170 (21.0%)113 (20.7%)0.9200
BMI29.229.70.2900
White race696 (92.6%)480 (87.9%)0.2200
Elective/urgent surgery753 (92.6%)484 (88.6%)0.0100
Risk category (ASA 4/5)208 (25.6%)215 (39.4%)<0.0001
Diabetes234 (28.8%)224 (41.0%)<0.0001
On-pump surgery516 (63.6%)422 (77.6%)<0.0001
Surgery type (CABG)742 (91.3%)441 (80.7%)<0.0001
Hypertension622 (76.5%)470 (86.0%)0.0005
CHF122 (15.1%)146 (26.7%)<0.0001
COPD128 (15.7%)115 (21.1%)0.0100
Liver disease33 (4.1%)19 (3.5%)0.5800
GI comorbidity135 (16.6%)106 (19.4%)0.1800
Neurologic diseases146 (17.9%)120 (22.0%)0.0700
Arthritis209 (25.7%)154 (28.2%)0.2100
Use of NSAID93 (11.4%)51 (9.3%)0.3100
ACEI/ARB386 (48.5%)321 (58.8%)0.0001
Intraoperative hypotension319 (39.2%)288 (52.8%)<0.0001
Postoperative hypotension86 (10.6%)92 (16.8%)0.00082