Table 2 Comparison of clinical baseline data between the two groups of patients

Sex: Male

39 (69.64)

102 (62.19)

1.006

0.316

Age (years)

< 30

0(0)

1 (0.61)

3.393

0.335

30 ~ 49

6 (10.71)

16 (9.76)

50 ~ 69

31 (55.36)

110 (67.07)

>=70

19 (33.93)

37 (22.56)

BMI

too light

2 (3.57)

7 (4.27)

1.288

0.732

normalcy

29 (51.78)

71 (43.29)

overweight

17 (30.36)

61 (37.19)

obese

8 (14.29)

25 (15.24)

Smoking history: Yes

22 (39.28)

50 (30.49)

1.468

0.226

Drinking history: Yes

12 (21.43)

49 (29.88)

1.487

0.223

Complication (medicine)

History of hypertension: Yes

23 (41.07)

56 (34.15)

0.870

0.351

History of diabetes: Yes

8 (14.28)

13 (7.93)

1.955

0.162

Cerebrovascular diseases: Yes

8 (14.28)

18 (10.97)

0.439

0.508

CONUT score

Normal nutrition

18 (32.14)

68 (41.46)

6.214

0.102

mild malnutrition

32 (57.14)

90 (54.88)

Moderate malnutrition

5 (8.93)

6 (3.66)

severe malnutrition

1 (1.79)

0(0)

Types of Cardiovascular Surgery

coronary artery

9 (16.07)

17 (10.36)

2.094

0.718

valve surgery

35 (62.50)

114 (69.51)

Aortic surgery

5 (8.93)

13 (7.93)

congenital heart disease

2 (3.57)

9 (5.49)

the rest

5 (8.93)

11 (6.71)

CPB time (min)

142 (117, 179)

128 (106, 160)

-2.406

0.016

Aortic cross-clamp time(min)

100 (82, 128)

86 (67, 112)

-2.919

0.004

Mechanical ventilation (days)

5(2,12.75)

2(1,3)

-5.652

< 0.001

ICU (days)

10(6,19)

6(5,8)

-4.192

< 0.001

Postoperative antimicrobial use

(days)

18(13,23)

12(9,15)

-5.565

< 0.001

Length of stay (days)

27(20,36)

20(16,25)

-4.370

< 0.001