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Table 1 Pre- and perioperative characteristic of participants

From: Self-rated health is associated with the length of stay at the intensive care unit and hospital following cardiac surgery

 

N = 267

 

Number/median/mean

%/(IQR)/SD

Preoperative factors

  

Age (years)

60.3

8.9

Male

194

73%

Female

73

27%

Body weight (kg)

81.9

14.5

BMI (kg/m2)

27.9

4.3

Medical history

  

Hypertension

204

76.4%

Diabetes

66

24.7%

Myocardial infarction

84

31.5%

Arrhythmia

62

23.2%

Hyperlipidemia

156

58.4%

Kidney failure

25

9.3%

COPD

37

13.8%

Gastrointestinal disease

57

21.3%

NYHA III/IV

30

11.2%

Atrial fibrillation

39

14.6%

Stroke

8

3.0%

Peripheral arterial disease

23

8.6%

Pulmonary hypertension

17

6.4%

Perioperative factors

  

Valve

101

37.8%

CABG

174

61.4%

Complex procedure

21

7.9%

Operation time

133

(110–160)

Cardiopulmonary bypass time

37

(0–71)

Off-pump procedure

147

55.1%

Surgeon A

24

9.8

B

13

5.9

C

39

15.1

D

13

4.8

E

87

26.1

F

37

17.3

G

13

6.8

H

33

11.1

I, J, K

9

2.6

Postoperative complication

  

Sepsis

7

2.6%

Death

4

1.5%

Dialysis

6

2.2%

Intra-aortic balloon pump

11

4.1%

Mechanical ventilation more than 48 hours

12

4.5%

Bleeding

20

7.5%

Acute myocardial infarction

7

2.6%

Sepsis

9

3.4%

Liver failure

9

3.4%

Multiple organ failure

5

1.9%

Neurological disorder

10

3.7%

Hospital days

9.5

6.2

  1. IQR: Interquartile range; SD: standard deviation; BMI: body mass index; COPD: Chronic obstructive pulmonary disease; NYHA: New York Heart Association; CABG: Coronary artery bypass grafting; ASA: American Society of Anesthesiologists risk score. Data are described as the mean and standard deviation (SD) or the median and interquartile range (25th–75th percentile) for continuous variables and as counts and percentages for categorical variables.