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Research Article  |   September 2008
Person–Vehicle–Environment Interactions Predicting Crash-Related Injury Among Older Drivers
Author Affiliations
  • Sherrilene Classen, PhD, MPH, OTR/L, is Assistant Professor, Department of Occupational Therapy, College of Public Health and Health Professions, PO Box 100164, Gainesville, FL 32611-0164; sclassen@phhp.ufl.edu
  • Kezia D. Awadzi, PhD, is Postdoctoral Research Associate, Department of Occupational Therapy, College of Public Health and Health Professions
  • William W. Mkanta, PhD, is Postdoctoral Research Associate, Department of Health Services Research, Management, and Policy, University of Florida, Gainesville
Article Information
Community Mobility and Driving / Geriatrics/Productive Aging / Rehabilitation, Disability, and Participation
Research Article   |   September 2008
Person–Vehicle–Environment Interactions Predicting Crash-Related Injury Among Older Drivers
American Journal of Occupational Therapy, September/October 2008, Vol. 62, 580-587. doi:10.5014/ajot.62.5.580
American Journal of Occupational Therapy, September/October 2008, Vol. 62, 580-587. doi:10.5014/ajot.62.5.580
Abstract

OBJECTIVE. The object of this research was to identify interactions among person, vehicle, and environment factors associated with crashes and injuries among older drivers.

METHOD. We quantified risk factors and interactions for 5,744 drivers.

RESULTS. Women had a high crash risk during mornings (8:00 a.m.–1:00 p.m.; odds ratio [OR] = 1.73, confidence interval [CI] = 1.40–2.14) or afternoons (2:00 p.m.–8:00 p.m.; OR = 1.74, CI = 1.41–2.15); alcohol-related crashes were the least likely to occur during mornings (OR = 0.19, CI = 0.12–0.31). The greatest crash risk with another vehicle occurred during afternoons (OR = 3.89, CI = 2.41–5.05). Injury had interactions with fixed-object crashes (OR = 427, CI = 182.9–998.24), no seatbelt (OR = 5.69, CI = 3.90–8.29), female gender (OR = 1.54, CI = 1.67–1.92), and mornings (OR = 1.40, CI = 1.01–1.94).

CONCLUSION. An opportunity for crash and injury prevention research and shaping longer-range evaluation policies emerged.