Table 5 Final multivariable model of variables significant for survival in 297 colic surgeries in Norway 2005 - 2011

Affected GI-segment

0.007^a

  Small intestine

1.00

  Cecum

0.44

0.145

0.15 - 1.33

  Large colon

2.03

0.021

1.11 - 3.71

  Small colon

0.94

0.906

0.32 - 2.74

  Ventricle and other

0.90

0.900

0.18 - 4.43

Mucosal membranes

<0.001^a

  Normal

1.00

  Abnormal

0.42

0.009

0.21 - 0.81

  Pale

0.32

0.003

0.15 - 0.81

  Cyanotic

0.18

0.028

0.04 - 0.84

  Toxic

0.59

0.396

0.18 - 1.99

Surgeon

  Not board-certified

1.00

  Board-certified (ECVS\ACVS)

2.47

0.013

1.21 - 5.06