Table 3 Postoperative data of stratified by BMI categories

 Duration of ICU stays (d), median (IQR)

8.1 (7.1,9.2)

9.5 (8.6,10.5)

12.0 (10.0,14.1)

0.001^a

 Duration of hospital stays (d), median (IQR)

21.0 (19.8,22.2)

22.6 (21.3,23.9)

27.4 (24.3,30.5)

< 0.001^a

 In-hospital mortality, n (%)

42 (16.9)

89 (21.8)

29 (24.0)

0.198^b

 Stroke, n (%)

15 (6.0)

22 (5.4)

9 (7.4)

0.700^b

 Myocardial infarction, n (%)

7 (2.8)

7 (1.7)

6 (5.0)

0.135^b

 Low cardiac output syndrome, n (%)

2 (0.8)

3 (0.7)

2 (1.7)

0.632^c

 Arrhythmia, n (%)

3 (1.2)

14 (3.4)

3 (2.5)

0.219^c

 Aortic dissection rupture, n (%)

3 (1.2)

5 (1.2)

0

0.474^c

 Respiratory insufficiency, n (%)

3 (1.2)

6 (1.5)

0

0.412^c

 Acute renal failure, n (%)

46 (18.5)

105 (25.7)

30 (24.8)

0.098^b

 Gastrointestinal bleeding, n (%)

17 (6.9)

41 (10.0)

12 (9.9)

0.356^b

 Deep sternal wound infection, n (%)

3 (1.2)

4 (1.0)

4 (3.3)

0.155^c

 Septicemia, n (%)

1 (0.4)

0

1 (0.8)

0.249^c

 Postoperative bleeding, n (%)

2 (0.8)

2 (0.5)

4 (3.3)

0.024^c

 Prolonged MV (>  48 h), n (%)

111 (44.8)

227 (55.6)

80 (66.1)

< 0.001^b

 In-hospital major adverse outcomes, n (%)

156 (62.9)

294 (72.1)

94 (77.7)

0.006^b