Table 1.

Baseline characteristics

Patients included, n	407
Male % (n)	67	(273)
Age, mean (SD)	63	(14)
APACHE II score, mean (SD)	25.5	(8.8)
Survival in days, median (IQr)	5	(3–11)
Overall mortality, % (n)	89.7	(365)
Mortality within 1 day, % (n)	4.7	(19)
Mortality within 2 days, % (n)	7.9	(32)
Mortality within 3 days, % (n)	17.2	(70)
SEP after 24 h	97 absent	134 present
SEP after 48 h	88 absent	128 present
SEP after 72 h	114 absent	139 present

SEP median nerve somatosensory evoked potentials, SD standard deviation, IQr inter-quartile range