Table 4

PTSD risk factors reported in the ICU- and PTSD-related literature at large

Known risk factors for PTSD or PTSD symptoms in the ICU

ICU length of stay (longer duration)

Hospital stay (longer duration)

Length of mechanical ventilation

Greater levels of sedation

Female gender^a

Younger age^a

Pre-existing psychiatric history^a

Greater number of traumatic memories/frightening recollections^a

Presence of delusional memories^a

^aIndicates established risk factors that have been identified in the general PTSD literature. ICU, intensive care unit; PTSD, post-traumatic stress disorder.

Jackson et al. Critical Care 2007 11:R27   doi:10.1186/cc5707