Shock index and its variants as predictors of mortality in severe traumatic brain injury

Table 2 Blood pressure, heart rate and different shock indexes (mean ± SD)

	Survival (n = 49)		Non-survival (n = 22)		P value
SBP-24 h (mmHg)	135.59	36.5	138.95	40.1	0.739
DBP-24 h (mmHg)	81.27	23.5	85.38	25.2	0.526
HR-24 h (bpm)	88.22	25.4	88.68	29.0	0.949
SBP-48 h (mmHg)	131.47	27.6	127.20	25.0	0.536
DBP-48 h (mmHg)	67.77	12.1	72.33	15.0	0.257
HR-48 h (bpm)	82.61	18.5	93.95	19.9	0.036
SI-adm	0.70	0.3	0.69	0.3	0.901
SI-48 h	0.65	0.2	0.79	0.3	0.03
rSI-adm	1.70	0.8	1.78	1.0	0.742
rSI-48 h	1.66	0.5	1.44	0.5	0.106
rSIG-adm	10.45	5.9	11.02	7.7	0.758
rSIG-48 h	10.26	4.8	9.29	4.8	0.452
AgeSIG-adm	28.02	16.8	34.40	17.1	0.152
AgeSIG-48 h	26.32	14.2	37.27	17.8	0.016

SBP: Systolic blood pressure; HR: Heart rate; DBP: Diastolic blood pressure; SI: Shock index; rSI: Reverse shock index; rSIG: rSI multiplied by the Glasgow Coma Score; AgeSIG: Age multiplied SI.