Table 3 Baseline characteristics stratified by PSH group

Number of subjects

144

72

72

Age, y (Md; IQR)

58 (49–66)

57 (48–66)

60 (50–67)

.421^a

Male sex (n; %)

106 (73.6%)

53 (73.6%)

53 (73.6%)

1.000^b

Tracheal cannula (n; %)

136 (94.4%)

68 (94.4%)

68 (94.4%)

1.000^b

Ventilated (n; %)

116 (80.6%)

58 (80.6%)

58 (80.6%)

1.000^b

Time post-injury, d (Md; IQR)

21 (15–29)

19 (14–29)

23 (16–30)

.119^a

 Intracerebral hemorrhage

40 (27.8%)

24 (33.3%)

16 (22.2%)

.137^b

 Traumatic brain injury

31 (21.5%)

20 (27.8%)

11 (15.3%)

.068^b

 Stroke

25 (17.4%)

6 (8.3%)

19 (26.4%)

.004^b

 Hypoxic encephalopathy

18 (12.5%)

12 (16.7%)

6 (8.3%)

.131^b

 Other

30 (20.8%)

10 (13.9%)

20 (27.8%)

.040^b

ERI (median; IQR)

− 150 (− 175;−150)

−150 (−175;-150)

-150 (−175;-150)

.650^a

BI (median; IQR)

10 (10–10)

10 (10–10)

10 (10–10)

.631^a