Prognostic factors associated with hospital survival in comatose survivors of cardiac arrest

Table 1 Demographics, cardiac arrest details and management of included patients

Variable	All patients n = 582
Patient
Age (yr) - mean (SD) (n = 581)	63 (16)
Gender (male) - n (%) (n = 579)	361 (62)
Cardiac arrest
Time to ROSC (min) - mean (SD) (n = 571)	23 (15)
Presenting rhythm (shockable) - n (%) (n = 582)	286 (49)
Location of arrest (OHCA) - n (%) (n = 582)	408 (70)
Apache 2 score - mean (SD) (n = 427)	28 (8.4)
Apache 3 score - mean (SD) (n = 427)	78 (37.8)
Management
Cooled - n (%) (n = 582)	295 (51)
Target temperature (°C) - median (IQR) (n = 290)	33 (33-33)
Time to temp1 (h) - mean (SD) (n = 288)	2.1 (3.0)
Time at temp2 (h) - median (IQR) (n = 290)	24 (12-24)
Outcome
Survived to hospital discharge - n (%) (n = 582)	206 (35)
ICU LOS (d) - median (IQR) (n = 582)	3 (1-5)
Hospital LOS (d) - median (IQR) (n = 581)	5 (2-14)

¹Time to temp = time taken to reach target temperature (hours);

²Time at temp = time at target temperature (hours). LOS: Length of stay (days); ROSC: Return of spontaneous circulation (minutes); OHCA: Out of hospital cardiac arrest; IQR: Interquartile range.