Table 2.

Clinical and demographic characteristics of derivation and validation cohort

Variables	Derivation cohort (n = 191)	Validation Cohort (n = 100)
Age, median (IQR)a	65 (51 – 71)	64 (51 – 70)
Gender, female (%)	103 (54.8)	61 (61.0)
Source of ICUb admission
EDc	79 (41.4)	35 (35.0)
Transfer	112 (58.6)	65 (65.0)
ICU length of stay, median (IQR)	1 (0 – 4) days	2 (0 – 6) days
GCSd, median (IQR)	14 (9 – 15)	14 (10 – 15)
SWIFTe, median (IQR)	18 (8 – 29)	14 (11–23)
Time required for SWIFT calculation/patient, mean (SD)f	1.7 (0.64) minutes	1.9 (0.62)

^aIQR – interquartile range;

^bICU – Intensive Care Unit;

^cED - emergency department;

^dGCS – Glasgow comma scale;

^eSWIFT – stability and workload index for transfer;

^fSD – standard deviation.