. Author manuscript; available in PMC: 2022 Jun 1.

Published in final edited form as: Neurocrit Care. 2020 Oct 27;34(3):1017–1025. doi: 10.1007/s12028-020-01121-z

Table 2:

Association between lowest mean arterial pressure percentile and lowest systolic blood pressure percentile over the first 12 hours from PICU admit and poor discharge disposition among patients admitted to the PICU with severe TBI who survived 12 hours from PICU admission (n=166).

	Mean Arterial Pressure			Systolic Blood Pressure

Lowest blood pressure percentile	Poor discharge outcome N (%)	Relative Risk		Poor discharge outcome N (%)	Relative Risk
Lowest blood pressure percentile	Poor discharge outcome N (%)	Unadjusted	Adjusted^*	Poor discharge outcome N (%)	Unadjusted	Adjusted^*
< 5^th	18/42 (42.9)	9.0 (2.2, 36.4)	5.3 (1.2, 23.0)	28/56 (50.0)	6.8 (1.7, 26.3)	5.4 (1.3, 22.2)
5th - 9th	4/10 (40.0)	8.4 (1.8, 39.6)	8.5 (1.9, 38.7)	3/22 (13.6)	1.8 (0.3, 10.1)	1.8 (0.3, 10.0)
10^th – 24^th	5/35 (14.3)	3.0 (0.6, 14.5)	2.7 (0.6, 12.3)	0/28 (0.0)	n/a	n/a
25^th - 49th	4/30 (13.3)	2.8 (0.5, 14.3)	2.7 (0.5, 13.6)	1/31 (3.2)	0.4 (0, 4.5)	0.4 (0, 4.7)
50^th-95th	2/42 (4.8)	Referent	Referent	2/27 (7.4)	Referent	Referent
≥ 95^th	1/7 (14.3)	3.0 (0.3, 28.8)	2.7 (0.3, 24.8)	0/2 (0.0)	n/a	n/a

AIS=Abbreviated Injury Scale severity score. PICU=Pediatric Intensive Care Unit. TBI=traumatic brain injury.

Analyses adjusted for severe head injury (head AIS > 3), severe non-head injury (maximum non-head AIS > 3), and vasoactive use within the first twelve hours of PICU admission (Y/N)