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Table 2 Preoperative univariate risk factors for intestinal ischemia after cardiac surgery

From: Intestinal ischemia after cardiac surgery: analysis of a large registry

Variable N Control group N = 18862 Patients with intestinal ischemia N = 17 p value
Age (years)* 18879 69 (60–75) 69 (59–73) 0.45
Female gen der 18879 5187 (27) 6 (35) 0.47
BMI (kg/m2)* 15066 26 (24–29) 25 (22–27) 0.15
Haemoglobin (g/L)* 15859 135 (123–145) 130 (118–140) 0.56
Creatinine > 200 (μmol/L) 18144 340 (2) 2 (12) 0.04
Dialysis 18652 226 (1) 0 1
Hemodynamic instable 18876 272 (1) 2 (12) <0.001
Smoking 8518 849 (10) 2 (25) 0.19
Emergency cardiac surgery 18879 1923 (10) 7 (41) <0.001
Chronic obstructive pulmonary disease 18653 1756 (9) 2 (12) 0.67
Stroke 18653 830 (4) 3 (18) 0.038
Peripheral vascular disease 18653 2388 (13) 7 (41) <0.001
Left ventricular ejection fraction <30 % 18879 1482 (8) 2 (12) 0.39
Instable angina 18879 1542 (8) 5 (29) 0.01
Cardiogenic shock 16091 282 (2) 3 (23) 0.001
Atrial fibrillation 14786 1552 (11) 2 (14) 0.65
Anticoagulants 18879 2640 (14) 5 (29) 0.078
Steroids 18879 212 (1) 2 (12) 0.016
IABP 18871 576 (3) 2 (12) 0.094
Diabetes mellitus 18652 3462 (19) 3 (18) 1
NYHA 4 18879 2652 (12) 9 (53) <0.001
  1. N is the number of non missing values, values in parentheses are percentages, except median (interquartile range)*, BMI body mass index, IABP intra-aortic balloon pump, NYHA New York Heart Association.