Table 1

Characteristics of trial patients and non-randomised patients

Women

Age, years

Acute operation

Acute cholecystitis

Pancreatitis

Jaundice

Malignancy

Associated diseases

ASA III+IV


n

n

%

Mean

SD

n

%

n

%

n

%

n

%

n

%

n

%

n

%


Trial patients

724

501

69.2

50.6

15.6

106

14.6

72

8.6

0

0

0

154

21.3

28

3.9

Non-randomised patients

993

657

66.2

56.5

19.1

516

52.0

405

40.8

53

5.4

140

14.1

27

2.7

336

33.8

99

14.1

p = 0.18

p < 0.001

p < 0.001

p < 0.001

p < 0.001

p < 0.001

p < 0.001

p < 0.001

p < 0.001


Ros et al. BMC Surgery 2006 6:17   doi:10.1186/1471-2482-6-17

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