Table 2

Characteristics and outcomes among patients with exercise-related OHCA in relation to sex

Females
N=58
Males
N=577
P value
Age (years; mean±SD) (1, 22)59.1±18.459.1±16.10.97
Witnessed status (%) (1, 14)
 Crew witnessed7.05.90.77
 Bystander witnessed66.779.60.03
 Non witnessed25.914.50.03
Aetiology (%) (5, 28)
 Cardiac69.878.30.17
Initial rhythm (%) (5, 24)
 Ventricular fibrillation43.464.70.003
Early CPR
 (A) CPR before dispatched unit? (22, 271)
  Yes86.187.60.79
 If yes, was a defibrillator attached? (2, 4)
  Yes31.037.50.55
 If yes, was the patient defibrillated before arrival of the dispatched unit? (0, 3)
  Yes55.675.00.24
 (B) CPR by fire brigade/police before EMS arrival? (25, 278)
  Yes15.221.70.50
 If yes, was a defibrillator attached? (0, 2)
  Yes10082.50.58
 If yes, was the patient defibrillated before EMS arrival? (1, 0)
  Yes60.076.60.59
Delay time (median, min)
 From collapse—call (n=30, 347)2.02.00.65
 From collapse—CPR (n=34, 383)2.01.00.001
 From collapse—defibrillation (n=14, 250)13.511.00.22
 From dispatch—arrival on scene (n=43, 448)11.09.00.07
Outcome (%)
 ROSC at any time (1, 7)
  Yes52.657.20.58
 ROSC on arrival in hospital (4, 47)
  Yes53.755.30.89
 Alive at 30 days (0, 20)
  Yes29.346.00.02
  • Numbers presented in parenthesis is the frequency of patients with missing information.

  • CPR, cardiopulmonary resuscitation; EMS, emergency medical service; OHCA, out-of-hospital cardiac arrest; ROSC, return of spontaneous circulation.