Table 1 Detailed baseline characteristics of patient group < 1 year old. Adjusted to 30-day favourable neurological outcome defined as cerebral performance categories (CPC) 1 and 2. Data presented in n (%)

Patient & mission characteristics

 Age group

   < 1y

56

(100.0)

45

(100.0)

11

(100.0)

-

 Late/night mission (20:00–07:59)

10

(17.9)

10

(22.2)

0

(0.0)

0.085

Activity

 Transport

  Car

1

(1.8)

1

(2.2)

0

(0.0)

0.618

 Watersport

  Swimming

1

(1.8)

1

(2.2)

0

(0.0)

0.618

 Other

  In and around the house

44

(78.6)

38

(84.4)

6

(54.5)

 No activity or unknown

10

(17.9)

5

(11.1)

5

(45.5)

0.026

Aetiology detail

Non-traumatic

54

(96.4)

43

(95.6)

11

(100.0)

0.476

Asphyxia—total

18

(32.1)

15

(33.3)

3

(27.3)

0.700

 Asphyxia—drowning

4

(7.1)

4

(8.9)

0

(0.0)

0.305

 Asphyxia—aspiration

14

(25.0)

11

(24.4)

3

(27.3)

0.846

 Asphyxia—strangulation

0

[0.0]

0

[0.0]

0

[0.0]

-

 Asphyxia—burial

0

[0.0]

0

[0.0]

0

[0.0]

-

Other pulmonary

2

(3.6)

0

(0.0)

2

(18.2)

0.004

Cardiac

3

(5.4)

2

(4.4)

1

(9.1)

0.540

SIDS

21

(37.5)

21

(46.7)

0

(0.0)

0.004

Anaphylactic

0

[0.0]

0

[0.0]

0

[0.0]

-

Intoxication

0

[0.0]

0

[0.0]

0

[0.0]

-

Non-traumatic, reason unknown

6

(10.7)

3

(6.7)

3

(27.3)

0.048

Other non-traumatic

4

(7.1)

2

(4.4)

2

(18.2)

0.113

Traumatic

2

(3.6)

2

(4.4)

0

(0.0)

0.476

Traffic accident

1

(1.8)

1

(2.2)

0

(0.0)

0.618

Fall from a height

0

[0.0]

0

[0.0]

0

[0.0]

-

Burning/scalding

0

[0.0]

0

[0.0]

0

[0.0]

-

Other traumatic

1

(1.8)

1

(2.2)

0

(0.0)

0.618

First rhythm

Non-shockable

54

(96.4)

43

(95.6)

11

(100.0)

0.476

 Pulseless Electrical Activity

8

(14.3)

6

(13.3)

2

(18.2)

0.680

 Asystole

31

(55.4)

31

(68.9)

0

(0.0)

 < 0.001

Shockable initial rhythm

2

(3.6)

2

(4.4)

0

(0.0)

0.476

 Pulseless Ventricular Tachycardia

0

[0.0]

0

[0.0]

0

[0.0]

-

 Pulseless Ventricular Fibrillation

2

(3.6)

2

(4.4)

0

(0.0)

0.476

Normal Sinus rhythm / ROSC

5

(8.9)

0

(0.0)

5

(45.5)

 < 0.001

Unknown

10

(17.9)

6

(13.3)

4

(36.4)

0.074

No measures taken (obviously dead)

0

[0.0]

0

[0.0]

0

[0.0]

-

Injuries

 Traumatic brain injury

2

(3.6)

2

(4.4)

0

(0.0)

0.476

 Chest trauma

0

[0.0]

0

[0.0]

0

[0.0]

-

 Abdominal trauma

0

[0.0]

0

[0.0]

0

[0.0]

-

 Pelvic trauma

0

[0.0]

0

[0.0]

0

[0.0]

-

 Upper extremity trauma

0

[0.0]

0

[0.0]

0

[0.0]

-

 Lower extremity trauma

0

[0.0]

0

[0.0]

0

[0.0]

-

Outcome

 Favor. neurol. outcome, 30d (CPC 1/2)

11

(19.6)

0

(0.0)

11

(100.0)

 < 0.001