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Table 2 Characteristics of OHCA patients and final advanced airway techniquea

From: Airway management in out-of-hospital cardiac arrest in Finland: current practices and outcomes

Characteristics Total n = 614 SAD n = 188 ETI n = 413 P-value
Age, median (IQR) 66(56–78) 68(57–78) 65(55–77) 0.135
Sex, n (%) of males 436(71.0) 137(72.9) 289(70.0) 0.469
Witnessed, n (%) 560(91.2) 190(90.4) 378(91.5) 0.659
EMS-witnessed, n (%) 119(19.1) 31(16.5) 82(19.9) 0.328
CPR before EMS arrival, n (%) 298(48.5) 95(50.5) 199(48.2) 0.593
Highest EMS provider level on scene, n (%)     <0.001
Basic level paramedic 119(19.4) 85(45.2) 31(7.5)
Advanced level paramedic 246(40.1) 78(41.5) 162(39.2)
249(40.6) 25(13.3) 220(53.3)
Prehospital physician    
Shockable initial rhythmb, n (%) 183(29.8) 44(23.4) 136(32.9) 0.035
  1. SAD supraglottic airway device
  2. ETI endotracheal intubation
  3. EMS emergency medical service
  4. CPR cardiopulmonary resuscitation
  5. P-values from chi-square test except age that was counted with one-way-ANOVA
  6. a BVM (n = 12) and cricothyroidotomy (n = 1) listed only in “total”
  7. b in two patients, the initial rhythm was not monitored