Table 2 Procedural characteristics

Emergency surgery (n,%)

1,878

149

7.9

2,677

226

8.4

0.5390

ASA class (n,%)

1,880

2,682

0.0045

 1

48

2.6

59

2.2

0.4376

 2

636

33.8

785

29.3

0.0011

 3

1,074

57.1

1,612

60.1

0.0443

 4

120

6.4

222

8.3

0.0168

 5

2

0.1

4

0.1

1.0000

Procedure category

1,977

2,774

<0.0001

 Misc. diagnostic (n,%)

4

0.2

10

0.4

0.4202

 Obstetrical (n,%)

21

1.1

37

1.3

0.4007

 Cardiovascular (n,%)

153

7.7

301

10.9

0.0003

 Digestive (n,%)

398

20.1

530

19.1

0.3795

 Ear (n,%)

32

1.6

73

2.6

0.0192

 Endocrine (n,%)

17

0.9

33

1.2

0.2723

 Eye (n,%)

3

0.2

4

0.1

1.0000

 Female genital (n,%)

104

5.3

127

4.6

0.2811

 Heme/lymphatic (n,%)

35

1.8

47

1.7

0.8427

 Integumentary (n,%)

62

3.1

102

3.7

0.3141

 Male genital (n,%)

104

5.3

104

3.7

0.0121

 Musculoskeletal (n,%)

689

34.9

857

30.9

0.0041

 Nervous system (n,%)

30

1.5

114

4.1

<0.0001

 Nose, mouth, pharynx (n,%)

0

0

9

0.3

0.0129

 Thoracic (n,%)

123

6.2

137

4.9

0.0553

 Urinary (n,%)

139

7

199

7.2

0.8502

 Other (n,%)

63

3.2

90

3.2

0.9115

General anes used (n,%)

1,977

1,848

93.5

2,774

2,499

90.1

<0.0001

Regional anes used (n,%)

1,977

647

32.7

2,774

930

33.5

0.5642

Surg. time (mins) (mean, SD)

1,505

240.8

128.6

2,399

242

131.8

0.8516

Rec’d any RBC, FFP, cryo (n,%)

1,977

440

22.3

2,774

578

20.8

0.2398

Days of follow-up (mean, SD)

1,976

1,081.6

323.6

2,774

776.7

211.6

<0.0001