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Table 2 Differences in characteristics for 30-day survivors or not among 1764 prehospital traumatic cardiac arrests (TCA) in the Swedish Registry of Cardiopulmonary Resuscitation between 1990 and 2016

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

  30-day survivors 65 (100) Non-survivors 1699 (100) P-value*
Sex
 Male 52 (80) 1290 (76) 0.51
Age
 Years, mean (SD) 46 (21) 52 (33) 0.14
Witnessed by
 Crew 10 (15) 239 (14) 0.76
 Bystander 39 (60) 671 (39) < 0.01
 None 9 (14) 609 (36) 0.01
CPR before arrival of EMS
 Yes 37 (57) 701 (41) < 0.01
Initial rhythm
 Shockable 29 (44) 134 (8) < 0.01
Place of OHCA
 Public or other area 56 (86) 1340 (79) 0.19
Time intervals in minutes (median)
 Collapse to call 1 2 0.03
 Collapse to start of CPR 1,5 4 0.02
 Collapse to defibrillation 8 13 0.05
 Call to arrival of EMS 7 10 0.02
Treatment
 Adrenaline 28 (43) 1038 (61) < 0.01
 Intubation 21 (32) 768 (45) 0.05
  1. *P-value assessed with two-sided Chi2 test or Students t-tes0