Risk for intracranial pressure increase related to enclosed air in post-craniotomy patients during air ambulance transport: a retrospective cohort study with simulation

Table 1 Cohort demographics

	n =	Age (years)	Age range (years)
Total	119	76 ± 9	40–98
Men	95	75 ± 10	40–98
Women	24	79 ± 7	65–92
Lowest RLS after operation, for patients (n = 34) that had pneumocephalus
	Pre-op	Last post-op
RLS 1	12	17
RLS 2	16	13
RLS 3	3	0
RLS 4	0	0
RLS 5	0	0
RLS 6	1	0
RLS 7	0	0
RLS 8	0	0
Missing values	2	4

Mean values ± standard deviation presented. RLS: Reaction level scale. RLS 1: Awake and oriented. RLS2: Drowsy or confused, response to light stimulation. RLS3: Very drowsy or confused, responsive to strong stimulation. RLS4 Unconscious, localizes but does not ward pain. RLS 5: Unconscious, withdrawing movement on pain stimulation. RLS 6: Unconscious, stereotypical flex movements on pain stimulation. RLS 7: Unconscious, stereotypical extension movements on pain stimulation. RLS 8: No response to painful stimulation

ISSN: 1757-7241