Table 1

Age and other factors at resuscitation

Cardiac arrest at home
FactorMissing*Yes (n=16 150)No (n=8480)p Value
*Number of patients in the two categories with missing information.
†Only witnessed cases included.
‡All cases included.
CPR, cardiopulmonary resuscitation; VF, ventricular fibrillation.
Sex (n (%))722, 373
    Male10 702 (69.4)6259 (77.2)<0.0001
    Female4726 (30.6)1848 (22.8)
Age (years)316, 660
    Mean (SD)68.1 (15.9)65.9 (17.1) 0.003
    Range0–990–99
Witnessed arrest (n (%))1527, 8278847 (60.5)5265 (68.8)<0.0001
Bystander CPR (n (%))802, 3434296 (28.0)3942 (48.4)<0.0001
Initial arrhythmia (n (%))1700, 967
    VF3809 (26.4)3232 (43.0)<0.0001
†Interval (min) between cardiac arrest and:
Call for ambulance1666, 803
    Median54
    Mean (SD)6.4 (19.5)5.3 (22.2) 0.006
Start of CPR2094, 1166
    Median128
    Mean (SD)14.5 (32.8)10.1 (30.7)<0.0001
Arrival of ambulance1830, 934
    Median1210
    Mean (SD)15.2 (36.4)13.0 (29.9)<0.0001
First defibrillation (if in VF)498, 413
    Median1311
    Mean (SD)14.9 (26.3)13.3 (23.7)<0.0001
‡Interval (min) between call for ambulance and:
Arrival of ambulance645, 422
    Median65
    Mean (SD)8.8 (22.6)8.1 (21.5) 0.009
First defibrillation (if in VF)251, 247
    Median97
    Mean (SD)10.7 (20.8)9.7 (24.8)NS