- Design
- prospective observational cohort with a licensing-authority-approved driving assessment
- Population
- 40 recruited, 33 assessed adult intensive care survivors ventilated ≥72 hours or on ECMO, median age 53, 32% female
- Primary outcome
- driving ability on comprehensive assessment at approximately 3 months after discharge
- Effect
- 26 of 33 (79%) capable of driving a standard vehicle; 15 (45%) had resumed
Driving is the thing that returns independence after critical illness, and no one owns the decision: intensivists discharge, general practitioners inherit, and the patient is left to guess. This UK cohort recruited 40 adult intensive care survivors from six hospitals, all of whom had been ventilated for at least 72 hours or received extracorporeal membrane oxygenation, and put 33 of them through a licensing-authority-approved assessment — physical and cognitive evaluation, then simulator, private track and on-road driving — at a median 12.5 weeks after hospital discharge.
Twenty-six (79%) were assessed as capable of driving a standard vehicle, but only 15 (45%) had resumed. Seven (21%) were not fit: four for physical reasons, two psychological, one cognitive. Of those seven, four resumed within the study year after adaptations, retraining or refresher lessons. Self-reported resumption rose from 62% at three months to 82% at six and 91% at twelve, with time to resumption ranging from 7 to 274 days. Driving confidence rose from a median of 7 to 9 out of 10 after assessment, and 32 of 33 rated the assessment very good or excellent.
The gap between 79% able and 45% driving is the finding. These patients were not waiting for recovery; they were waiting for permission that no one was giving. Asking about driving at the follow-up appointment costs nothing, and for the fifth who genuinely are not safe, most of that group got back on the road once the specific problem was named and addressed.
- Ask every intensive care survivor at follow-up whether they have resumed driving, and if not, why not
- Distinguish not safe from not confident — they need different interventions
- Refer for formal driving assessment rather than issuing a blanket prohibition
- Check the physical barriers first; they were the commonest reason for being unfit
- Note that Indian licensing has no equivalent post-critical-illness assessment pathway, so the conversation matters more, not less
Why it matters
The barrier to driving after critical illness is mostly unanswered uncertainty, not residual impairment.
Don't overread it
This is 33 assessed patients at a single UK centre — the proportions are indicative, not a rate you can quote to an individual.
The statistics, in plain English
With 33 people assessed, each individual represents about three percentage points, so treat 79% and 45% as roughly four-fifths and under half rather than precise figures. The rise in self-reported resumption from 62% to 91% over the year cannot be attributed to the assessment, because there was no comparison group who did not have one — recovery alone would produce a similar curve. The confidence change is a before-and-after measure in the same people, which is the weakest design for showing an intervention worked.
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