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Table 1 Preoperative patients’ characteristicsa

From: Development of a new sternal dehiscence prediction scale for decision making in sternal closure techniques after cardiac surgery

Characteristics

n

%

Range

 

7173

  

Age (years)

 Mean

66.5

(+ 12.4)

(22–85)

  < 60

1878

26.2

 

  > 60

5295

73.8

 

Gender

 Male

5306

74.0

 

 Female

1867

26.0

 

BMI (kg/m2)

 Mean

28,1

(+ 4.6)

(14–57)

  < 25

1861

25.9

 

 25–35

4791

66.8

 

  > 35

521

7.3

 

Diabetes mellitus

 No

4978

69.4

 

 NIDDM

1356

18.9

 

 IDDM

839

11.7

 

COPDb

 Yes

624

8.7

 

 No

6549

91.3

 

Renal impairmentc

190

2.6

 

Smoker

 No

3854

53.7

 

 Former

2034

28.4

 

 Currentd

1285

17.9

 

Previous cardiac OP

 no

6096

85.0

 

  > 6 months

1077

15.0

 

Cardiogenic shock

 No

6891

96.1

 

  < 3 weeks

82

1.1

 

  < 48 h

200

2.8

 

Surgical priority

 Elective

3197

44.6

 

 Urgent

3111

43.4

 

 Emergency

865

12.1

 

OP-Duration (min)

 Mean (SD)

214

(+ 83.5)

(17–1135)

  < 300

6436

89.7

 

  > 300

737

10.3

 

Re-Exploration

 Yes

420

5.9

 

 No

6753

94.1

 
  1. Legend: BMI Body mass index, COPD Chronic obstructive pulmonary disease
  2. aValues are no. of patients or mean + SD with interquartile range in brackets
  3. b,call stages, Definition: see EuroSCORE II; dwithin last 2 months preoperativel