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Table 3 Association between OHCA-variables and 30-day survival among 1764 TCAs in the Swedish Register for Cardiopulmonary Resuscitation between 1990 and 2016

From: Traumatic cardiac arrest in Sweden 1990-2016 - a population-based national cohort study

OHCA variable Crude OR (95% CI) Adjusted OR (95% CI) a
Bystander witnessed
 No 1.00 (Reference) 1.00 (Reference)
 Yes 3.16. (1.39–7.17) 2.67 (1.15–6.22)
CPR before EMS arrival
 No 1.00 (Reference) 1.00 (Reference)
 Yes 2.45 (1.13–5.27) 2.11 (0.92–4.84)
Initial rhythm
 Non-shockable 1.00 (Reference) 1.00 (Reference)
 Shockable 9.79 (4.93–19.44) 8.94 (4.27–18.67)
Adrenaline
 No 1.00 (Reference) 1.00 (Reference)
 Yes 0.48 (0.23–0.99) 0.35 (0.17–0.73)
  1. a Multivariable regression model including bystander witnessed or not, CPR before arrival of EMS, initial heart rhythm, adrenaline or not as well as time from call to arrival of EMS