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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: Resuscitation. 2016 Jun 11;105:161–164. doi: 10.1016/j.resuscitation.2016.05.029

Table 3.

Predictors of prehospital medication administration in multivariable regression models.

Outcome variables
Predictor variables Adrenaline Atropine Amiodarone or
Lidocaine
Female sex 0.81 (0.74–0.88) 0.86 (0.80–0.92) 0.68 (0.61–0.75)
Age (per 10 years) 1.00 (0.98–1.03) 0.99 (0.97–1.01) 0.99 (0.96–1.02)
Witnessed arrest 0.78 (0.72–0.86) 0.79 (0.74–0.85) 1.49 (1.35–1.64)
Public location 0.78 (0.70–0.88) 0.78 (0.71–0.86) 1.15 (1.02–1.29)
Bystander CPR 1.23 (1.13–1.35) 0.91 (0.84–0.97) 1.20 (1.09–1.32)
VF/VT first rhythm 0.70 (0.63–0.77) 0.44 (0.40–0.47) 8.40 (7.64–9.25)
Cases included 15,421 15,420 15,420
R2 0.0114 0.0338 0.1936

CPR = Cardiopulmonary resuscitation; VF/VT = Ventricular fibrillation/ventricular tachycardia