ICU sedation, delirium & recovery
Delirium and Self-Reported Driving Behaviors and Outcomes After Critical Illness
Main finding · Self-rated driving skill (Driver Skill Inventory) per delirium durationResult — go to the resultRegression coefficient −0.10 95% CI −1.13 to 0.93Authors' conclusion
In this cohort study of survivors of critical illness, ICU delirium was not independently associated with long-term changes in driving behaviors after critical illness; survivors of critical illness self-reported significant decreases in transportation independence and driving skill after hospital discharge, independent of delirium duration during hospitalization.
Study context
- Population
- Survivors of critical illness residing within 200 miles of Nashville, Tennessee, surveyed 2 to 6 years after critical illnessof 333 survivors
- Participants
- 151 survivors
- Exposure
- Association of intensive care unit (ICU) delirium duration with long-term driving behaviors
- Outcome
- Self-rated driving skill (Driver Skill Inventory)
Methodological detailsmulticentre, Survey at median (range) 3.7 (2.1-6.2) years after critical illness; median (IQR) delirium duration 1 (0-4) day
- Multicentre
- Survey at median (range) 3.7 (2.1-6.2) years after critical illness; median (IQR) delirium duration 1 (0-4) day
Main finding
As reported in the abstract
Regression coefficient
−0.10
95% CI −1.13 to 0.93
Observational data: associations, not effects.
Secondary outcomes
Risky driving behaviour (Mini Driver Behavior Questionnaire), association with delirium duration
- Regression coefficient per delirium duration, not independently associated
- −0.46 (95% CI, −1.97 to 1.06)
Driving distance after vs before critical illness
- After critical illness, median (IQR) miles per week
- 60 (25-150)
- Prehospitalization estimate, median (IQR) miles per week
- 105 (58-250)
- Significantly lower after critical illness
- P < 0.001
Driving skill on return to driving
- Driving skill, median (IQR) on a 48-point scale, significantly lower on return to driving
- 34 (26-38); P < .001
Safety orientation on return to driving
- Safety orientation, median (IQR) on a 48-point scale, significantly lower on return to driving
- 38 (35-46); P < .001
Time to driving resumption after ICU discharge
- Driving resumption, median (IQR) months after ICU discharge
- 1.9 (0.8-6.0)
Adults ≥65 years (subgroup)
- Decrements in driving skill and safety orientation persisted
Original publication
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