Table 1 Study participant demography

Age

57 (41–62)

25 (22–29)

54 (36.5–63)

Years

Male

67 (74)

7 (47)

72 (75)

count (%)

GCS admission

7 (3–9)

6 (3–11)

Scale 1–15

GCS motor admission

4 (1–5)

4 (1–5)

Scale 1–6

Pupils

Bilaterally responsive: 67 (74)

Bilaterally responsive: 69 (72)

Count (%)

Unilaterally unresponsive: 11 (12)

Unilaterally unresponsive: 9 (9.4)

Bilaterally unresponsive: 9 (10)

Bilaterally unresponsive: 16 (17)

Missing: 3 (3.3)

Missing: 2 (2.1)

Head AIS

1 (minor): 0 (0)

1 (minor): 0 (0)

Score 1–6

2 (moderate): 0 (0)

2 (moderate): 1 (1.0)

3 (serious): 10 (11)

3 (serious): 10 (10.4)

4 (severe): 30 (33)

4 (severe): 25 (26)

5 (critical): 43 (48)

5 (critical): 57 (59)

6 (maximum): 0 (0)

6 (maximum): 0 (0)

Missing: 7 (7.8)

Missing: 3 (3.1)

ISS

25 (19–29)

25 (17–29)

Scale

Missing: 7 (7.78)

Missing: 3 (3.1)

Multitrauma

29 (32)

26 (27)

Count (%)

Hypotension at SoA

2 (2.2)

1 (1.0)

Count (%)

Missing: 24 (27)

Missing: 26 (27)

Hypoxia at SoA

15 (17)

18 (19)

Count (%)

Missing: 4 (4.4)

Missing: 4 (4.2)

Stockholm CT score

2.5 (2–3.3)

2.5 (1.9–3.3)

Scale

Q_A

0.0041 (0.0018–0.011)

0.0040 (0.0035–0.0060)

0.009 (0.003–0.027)

Quotient

Missing: 19 (21.1)

Missing: 71 (74)

APOE allele status

No allele: 57 (63)

No allele: 64 (67)

Count (%)

Heterozygote: 16 (18)

Heterozygote: 17 (18)

Homozygote: 2 (2)

Homozygote: 3 (3.1)

Missing: 15 (17)

Missing: 12 (12.5)

Evacuation aSDH

33 (38)

50 (61)

Evacuation EDH

6 (6.8)

14 (17)

Evacuation tICH

24 (27)

13 (16)

ICP monitor^a

38 (43)

60 (73)

Other intracranial monitoration^b

55 (63)

39 (48)

GOS

GOS 1 (death): 12 (13)

GOS 1 (death): 10 (10.4)

Score 1–5

GOS 2 (vegetative): 0 (0)

GOS 2 (vegetative): 1 (1.0)

GOS 3 (severe disability): 34 (38)

GOS 3 (severe disability): 30 (31)

GOS 4 (moderate disability): 28 (31)

GOS 4 (moderate disability): 29 (30)

GOS 5 (good recovery): 16 (18)

GOS 5 (good recovery): 26 (27)

Unfavorable GOS

GOS 1–3: 46 (51)

GOS 1–2: 41 (43)

count (%)