Table 2 Outcomes of all cases and adjusted to 30-day favourable neurological outcome according to cerebral performance categories (CPC) 1 & 2

Mission purpose

 No CPR started

27 (9.1)

0 (0.0)

27 (11.2)

 ROSC already achieved

33 (11.1)

33 (58.9)

0 (0.0)

 Termination of resuscitation attempt < 5 min after arrival

2 (0.7)

0 (0.0)

2 (0.8)

 Termination of resuscitation attempt > 5 min after arrival

79 (26.7)

0 (0.0)

79 (32.9)

 ALS and transport with pre-hospital ROSC

101 (34.1)

21 (37.5)

80 (33.3)

 ALS and transport without pre-hospital ROSC

54 (18.2)

2 (3.6)

52 (21.7)

< 0.001

Pre-hospital return of spontaneous circulation (ROSC)

 Yes

134 (45.3)

54 (96.4)

80 (33.3)

 No

162 (54.7)

2 (3.6)

160 (66.7)

< 0.001

ROSC achieved by

 Bystander

21 (7.1)

21 (37.5)

0 (0.0)

 First responder

12 (4.1)

12 (21.4)

0 (0.0.)

 Ground-based emergency medical system team

51 (17.2)

12 (21.4)

39 (16.2)

 Helicopter emergency medical system team

50 (16.9)

9 (16.1)

41 (17.1)

 After transportation (in-hospital)

24 (8.1)

2 (3.6)

22 (9.2)

 No ROSC at any time point

138 (46.6)

0 (0.0)

138 (57.5)

< 0.001

On-scene

 Survival

186 (62.8)

56 (100.0)

130 (54.2)

 Death

110 (37.2)

0 (0.0)

110 (45.8)

< 0.001

Emergency department

 Survival

156 (52.7)

56 (100.0)

100 (41.7)

 Death

140 (47.3)

0 (0.0)

140 (58.3)

< 0.001

30-days

 Survival

71 (24.0)

56 (100.0)

15 (6.2)

 Death

225 (76.0)

0 (0.0)

225 (93.8)

< 0.001

1-year

 Unknown

3 (1.0)

1 (1.8)

2 (0.8)

 Death

229 (77.4)

0 (0.0)

229 (95.4)

 Survival

64 (21.6)

55 (98.2)

9 (3.8)

< 0.001