Table 3 Multivariable analysis of predictors of postoperative acute kidney insufficiency (AKI) in isolated coronary artery bypass grafting

 ≤ 65

Reference value

 65–80

1.4 (0.7–3.1)

0.39

 > 80

4.27 (1.6–11.8)

0.005

Smoking

0.64 (0.3–1.2)

0.17

Diabetes mellitus

1.96 (1.1–3.7)

0.04

Cerebrovascular disease

0.94 (0.4–2.4)

0.94

Peripheral vascular disease

2.55 (1.2–5.6)

0.02

Acute myocardial infarction < 30 days

1.48 (0.7–2.9)

0.27

History of congestive heart failure

0.80 (0.4–1.9)

0.64

NYHA III & IV

1.90 (1.3–2.9)

0.002

Cardiogenic shock

0.34 (0.3–2.9)

0.16

 Elective

Reference value

 Urgent

0.56 (0.3–1.2)

0.12

 Emergency

0.70 (0.2–2.4)

0.56

Use intra-aortic balloon pump

0.98 (0.3–2.9)

0.97

Surgical re-exploration

2.49 (1.1–5.8)

0.04

Postoperative atrial fibrillation

1.54 (0.8–2.9)

0.19

Postoperative low cardiac output syndrome

2.85 (1.5–5.5)

< 0.0001

 Red blood cells

4.93 (2.3–10.8)

< 0.0001

 Other blood products

0.65 (0.1–1.3)

0.24