Table 4.

Outcome according to BAL

		BAL negative	BAL positive	p-value
Mechanical ventilation (days)	Median (IQR)	0 (0–3)	0 (0–2)	.13
LOS on ICU (days)	Median (IQR)	3 (1–9)	2 (1–8)	.23
LOS in hospital (days)	Median (IQR)	13 (7–23)	12 (6–23)	.026
Mortality (24 h)	n (%)	266 (5.0%)	33 (4.0%)	.19
Mortality (in hospital)	n (%)	654 (12.4%)	88 (10.6%)	.14
95% CI for Mortality		[11.5–13.3]	[8.5–12.7]
RISC II Prognose		11.7%	10.8%	.97
Subgroup TBI	n	2092	405
ISS	Mean (SD)	27 (13)	24 (12)	<.001
Isolated TBI	n (%)	653 (31.2%)	173 (42.7%)	<.001
Mortality (in hospital)	n (%)	509 (24.3%)	68 (16.8%)	.001
95% CI for mortality		[22.5–26.2]	[13.1–20.4]
RISC II prognosis	Mean	23.9%	18.7%	<.001

LOS, Length of stay. ICU, Intensive Care Unit; TBI, Traumatic brain injury; CI Confidence Interval