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. 2022 Aug 13;10:33. doi: 10.1186/s40635-022-00460-9

Table 1.

42 patient demographics

Demographics Median (interquartile range) or number of patients
Age 41.5 (24.25–58.5)
Sex (% male) 37 (86%)
Best admission GCS—total 6.5 (4–8)
Best admission GCS—motor 4 (2–5)
Number with hypoxia episode 11
Number with hypotension episode 7
Number with traumatic SAH 40
Number with epidural hematoma 5
Pupils
 Bilateral unreactive 4
 Unilateral unreactive 7
 Bilateral reactive 31
Admission Marshall CT
 V 22
 IV 6
 III 11
 II 3
Mean ICP (mmHg) 7.9 (4.2–10.7)
% time ICP > 20 mmHg 0.3 (0.0–2.0)
% time ICP > 22 mmHg 0.1 (0.0–1.2)
Mean CPP (mmHg) 76 (71.3–83.5)
% time CPP > 70 mmHg 74 (52–84)
% time CPP < 60 mmHg 4 (0.4–6.3)
Mean rSO2 (au) 68.5 (61.3–76.5)
Mean BIS (au) 45.1 (34.6–60.5)
Mean PRx (au) 0.16 (-0.05–0.27)
% time PRx > 0 68 (55–81)
% time PRx > 0.25 42 (28–57)
% time PRx > 0.35 31 (20–45)
Mean COx_a (au) 0.06 (0.01–0.13)
% time COx_a > 0 54 (49–61)
% time COx_a > 0.25 22 (16–27)

Au, arbitrary units; BIS, bispectral index; COx_a, cerebral oximetry index; CPP, cerebral perfusion pressure; CT, computerized tomography; GCS, Glasgow Coma Score; ICP, intracranial pressure; mmHg, millimeters of mercury; PRx, pressure reactivity; rSO2, regional cerebral oxygen saturation; SAH, subarachnoid hemorrhage