• Jan Hartvigsen, Eleanor Boyle, J David Cassidy, and Linda J Carroll.
• Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark; Nordic Institute of Chiropractic and Clinical Biomechanics, Odense, Denmark. Electronic address: jhartvigsen@health.sdu.dk.
• Arch Phys Med Rehabil. 2014 Mar 1;95(3 Suppl):S286-94.

ObjectiveTo describe the 1-year course of symptoms following mild traumatic brain injury (MTBI) sustained in a motor vehicle collision as well as patterns of care-seeking.DesignOne-year follow-up of a population-based inception cohort.SettingThe province of Saskatchewan, Canada, with a population of about 1,000,000 inhabitants.ParticipantsPersons (N=1716) sustaining an MTBI during a car collision between November 1997 and December 1999.InterventionsNot applicable.Main Outcome MeasuresWe report the prevalence of sleep disturbances, tiredness, dizziness, forgetfulness, vision problems, hearing problems, headache, neck pain, mid back pain, and low back pain at 6 weeks and 3, 6, 9, and 12 months postcollision. At the same time points, we report self-reported care-seeking from registered health care professionals.ResultsA total of 1716 adults suffered MTBI after a motor vehicle collision over the 2-year inception period. Six weeks after the collision, 75% reported having more than 3 symptoms and 30% had clinically significant pain in more than 3 body sites. Over time, the prevalence of symptoms and pain decreased but they were still common after 1 year. Almost all participants sought care for their symptoms at all time points, most commonly from a physician. Care-seeking from physiotherapists, chiropractors, and massage therapists was also very common, and most participants sought care from 2 or 3 providers at all follow-up points.ConclusionsUp to 1 year after sustaining an MTBI during a motor vehicle collision, multiple symptoms and pain in several anatomical sites are common. Care-seeking from multiple providers continues throughout the first year postinjury.Copyright © 2014 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

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