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Table 4 Multivariate analysis of adverse perioperative outcome and mortality

From: Association between emergency department length of stay and adverse perioperative outcomes in emergency surgery: a cohort study in two Colombian University hospitals

 

Unadjusted

Adjusted

P

OR

95% CI

OR

95% CI

Adverse perioperative outcome

 Prolonged ED-LOS (>  48 h)

2.55

(2.04 - 3.18)

1.99

(1.13 - 3.51)

0.017

 Center

2.56

(1.99 - 3.29)

1.55

(1.16 - 2.06)

0.003

 Preoperative medical conditions

  Hypertension

2.12

(1.71 - 2.64)

0.97

(0.73 - 1.28)

0.807

  Diabetes

2.07

(1.58 - 2.71)

1.19

(0.85 - 1.64)

0.308

  Renal Disease

3.07

(2.10 - 4.48)

1.56

(1.01 - 2.43)

0.047

 Risk factors for 30-day mortalitya

  1 or 2 risk factors

3.77

(2.83 - 5.01)

4.20

(2.75 - 6.41)

< 0.001

  ≥ 3 risk factors

8.19

(5.83 - 11.50)

9.44

(5.50 - 16.2)

< 0.001

 Preoperative interventions

  Number of assesments

1.07

(1.06 - 1.08)

1.05

(1.04 - 1.07)

< 0.001

  Duration of surgery

1.35

(1.24 - 1.48)

1.20

(1.09 - 1.31)

< 0.001

Mortality

 Prolonged ED-LOS (>  48 h)

1.50

(1.07 - 2.10)

2.52

(0.91 - 7.01)

0.076

 Center

2.07

(1.37 - 3.14)

1.28

(0.82 - 2.00)

0.271

 Preoperative medical conditions

  Diabetes

1.65

(1.11 - 2.46)

1.19

(0.77 - 1.83)

0.442

  Renal Disease

2.87

(1.80 - 4.57)

1.94

(1.16 - 3.24)

0.012

 Risk factors for 30-day mortalitya

  1 or 2 risk factors

3.87

(2.23 - 6.72)

4.63

(2.12 - 10.08)

< 0.001

  ≥ 3 risk factors

8.31

(4.67 - 14.78)

8.88

(3.83 - 20.59)

< 0.001

 Preoperative interventions

  Number of assesments

1.01

(1.01 - 1.02)

1.01

(1.00 -1.01)

0.004

  Abdominal surgery

3.72

(2.12 - 6.53)

3.46

(1.93 - 6.20)

< 0.001

  Duration of surgery

1.2

(1.09 - 1.33)

1.14

(1.02 - 1.27)

0.019

  1. aRisk factors as defined by VISION study [3]: Age ≥ 65 years, history of coronary artery disease, congestive heart failure, PVD, stroke, COPD, active cancer and major general surgery
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