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Table 1 Clinical baseline data of Patients in the PP and Non-PP Groups

From: Evaluation of the significance of interleukin-6 in the diagnosis of postoperative pneumonia: a prospective study

Variable

PP Group (n = 68)

Non-PP Group (n = 626)

P

Age (year)

58.0 (52.0,69.8)

57.0 (49.0,67.0)

0.090

Gender Male (n,%)

46 (67.7)

364(58.1)

0.130

BMI

23.7(21.9,25.5)

24.1(22.0,26.4)

0.397

LVEF ≤ 40% (n,%)

12 (17.6)

55(8.8)

0.019

Type of cardiovascular surgery

  

0.352

Congenital heart surgery

1

19

 

Valve surgery

22

287

 

CABG

8

96

 

CABG + Valve surgery

9

15

 

Aortic surgery

1

105

 

Aortic + Valve surgery

8

68

 

Others

19

36

 

Smoking status (n,%)

30(44.1)

67(10.7)

 < 0.001

Drinking status (n,%)

43(63.2)

101(16.1)

 < 0.001

Hypertension (n,%)

38(55.9)

260(41.5)

0.037

Diabetes mellitus (n,%)

8(11.8)

76(12.1)

0.865

Previous surgery (n,%)

24(35.3)

241(38.5)

0.491

Cardiopulmonary bypass time (min)

150.0 (117.5,181.0)

139.5 (105.0,185.8)

0.365

Aortic cross clamp time (min)

109.0 (84.3,136.5)

99.0 (70.0,135.0)

0.281

MV time (h)

22.5 (15.1,32.8)

13.5 (8.0,20.0)

 < 0.001

Intensive Care Unit Stay time (h)

103.0 (72.0,237.3)

48.0 (28.6,72.0)

 < 0.001

Hospital stay time (day)

16.0 (14.0,21.8)

16.0(13.0,19.0)

0.068

Death (n,%)

6(8.8)

17(2.7)

0.008

  1. CABG Coronary artery bypass grafting, PP: Postoperative pneumonia, Median (interquartile range), n(%), MV Mechanical ventilation, LVEF Left ventricular ejection fraction