Driving Behavior in Older Adults with Depression
Author Information
Author(s): Babulal Ganesh M. PhD OTD, Chen Ling PhD, Trani Jean-Francois PhD, Brown David C. PhD, Carr David B. MD, Ances Beau M. MD PhD, Lenze Eric J. MD
Primary Institution: Washington University in St Louis
Hypothesis
Older adults with major depressive disorder (MDD) will experience greater changes in naturalistic driving behavior over time compared to those without depression.
Conclusion
Older adults with MDD exhibited riskier driving behaviors than those without depression, indicating a need for targeted interventions.
Supporting Evidence
- Participants with MDD had more hard braking and cornering events.
- Adults with MDD drove greater distances and visited more unique destinations.
- Depressive symptoms were significantly higher in participants with MDD compared to controls.
- Participants with MDD had more comorbidities than those without.
- Driving behavior was monitored using a commercial data logger over a mean of 1.1 years.
Takeaway
Older people with depression drive more dangerously than those without it, which means we need to help them drive safely.
Methodology
A prospective longitudinal cohort study was conducted among older adults (≥65 years) to evaluate driving behavior using a commercial data logger.
Potential Biases
Potential bias due to self-reported data and the inability to separate depression from dementia using the Clinical Dementia Rating.
Limitations
The study did not examine how MDD symptoms changed over time and did not adjust for other psychiatric conditions.
Participant Demographics
395 participants, 85 with MDD (70.6% female, 9.4% non-Hispanic Black) and 310 without MDD (49.4% female, 12.9% non-Hispanic Black).
Statistical Information
P-Value
P<0.001
Confidence Interval
95% CI for difference, 5.17 to 6.85
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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