. 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 3:

Association between lowest mean arterial pressure percentile and lowest systolic blood pressure percentile over the first 12 hours from PICU admit and in-hospital mortality 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	In-hospital mortality N (%)	Relative Risk		In-hospital mortality N (%)	Relative Risk
Lowest blood pressure percentile	In-hospital mortality N (%)	Unadjusted	Adjusted^*	In-hospital mortality N (%)	Unadjusted	Adjusted^*
< 5^th	17/42 (40.5)	8.5 (2.1, 34.5)	5.3 (1.2, 23.5)	24/56 (42.9)	5.8 (1.5, 22.7)	4.6 (1.1, 19.9)
5th - 9th	3/10 (30.0)	6.3 (1.2, 32.8)	7.2 (1.4, 36.3)	2/22 (9.1)	1.2 (0.2, 8.0)	1.3 (0.2, 8.8)
10^th – 24^th	4/35 (11.4)	2.4 (0.5, 12.3)	2.3 (0.5, 11.4)	0/28 (0)	n/a	n/a
25^th - 49th	2/30 (6.7)	1.4 (0.2, 9.4)	1.4 (0.2, 9.5)	1/31 (3.2)	0.4 (0, 4.5)	0.5 (0, 4.7)
50^th-95th	2/40 (4.8)	Referent	Referent	2/27 (7.4)	Referent	Referent
≥ 95^th	1/7 (14.3)	3.0 (0.3, 28.8)	3.1 (0.3, 28.7)	0/2 (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)