Jugular bulb oxygen saturation correlates with Full Outline of Responsiveness score in severe traumatic brain injury patients

Figures & data

Table 1 Sample characteristics

Variables	n
Sex, n (%)
Male	44 (69.8)
Female	19 (30.2)
Age (years), median (IQR)	32 (31)
BMI (kg/m^2), median (IQR)	22.2 (14.3)
Procedure underwent, n (%)
Surgical	50 (79.4)
Conservative/nonsurgical	13 (20.6)
Patient outcome, n (%)
Survivor	19 (30.2)
Non-survivor	44 (69.8)

Abbreviations: IQR, interquartile range; BMI, body mass index.

Table 2 Spearman’s correlation between SjvO₂ and FOUR score

Time	r	p-value
Upon arrival	0.246	0.052
24 hours post arrival	0.481	0.082
48 hours post arrival	-0.751	<0.001*
72 hours post arrival	-0.49	0.002*

Notes: r, Spearman’s correlation; *statistically significant.

Abbreviations: SjvO₂, jugular venous oxygen saturation; FOUR, Full Outline of Responsiveness.

Table 3 Regression analysis results to detect mortality predictor

Variables	B	p-value	OR	95% CI for OR
				Lower limit	Upper limit
Age	-0.18	0.412	0.982	0.941	1.025
MAP	-0.17	0.641	0.984	0.918	1.054
FOUR score	-0.587	<0.0001*	0.925	0.858	0.996
SjvO2	-0.78	0.04*	0.556	0.406	0.762

Note: *Statistically significant.

Abbreviations: MAP, mean arterial pressure; OR, odds ratio; CI, confidence interval; FOUR, Full Outline of Responsiveness; SjvO₂, jugular venous oxygen saturation.