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Table 4 Logistic regression model for the odds of an adverse event according to predefined clinical variables

From: Helicopter inter-hospital transfer for patients undergoing extracorporeal membrane oxygenation: a retrospective 12-year analysis of a service system

Variable

Odds ratio

95% confidence interval

p

Time

   

Daytime

 

Night-time

2.18

0.98–4.83

0.056

Sex

   

Male

 

Female

0.85

0.33–2.05

0.719

Age

1.01

0.98–1.04

0.528

Total mission time

1.00

1.00–1.00

0.538

ECMO type*

   

Veno-venous

 

Veno-arterial

1.41

0.59–3.50

0.443

Mission classification

   

Primary mission

 

Secondary mission

1.25

0.55–2.87

0.589

  1. *ECMO type variable grouped as veno-venous and veno-arterial, with veno-venoarterial was merged with veno-arterial due to low numbers (n = 2)