Objectives: The purpose of this study was to identify specific symptom and neuropsychological test patterns that might serve as prognostic indicators of recovery in concussed high school football players. The recently proposed simple versus complex concussion classification was examined and specific symptom clusters were identified.
Design: Case-control study.
Setting: High school football.
Participants: Subjects were 108 recently concussed male high school football athletes between the ages of 13 and 19 (mean, 16.01) years.
Assessment of Risk Factors: Participants were evaluated by utilizing the Immediate Postconcussion Assessment and Cognitive Testing computer-based neurocognitive test battery at before injury and within an average of 2.23 days of injury. All athletes were followed until they met criteria for clinical recovery.
Main Outcome Measures: Symptom ratings and neurocognitive test performance.
Results: Both neurocognitive test results and self-reported symptom data had prognostic value in determining time to clinical recovery. Self-reported cognitive decline, Immediate Postconcussion Assessment and Cognitive Testing reaction time, and migraine headache symptoms were associated with longer time to clinical recovery. Overall, these difficulties were predictive of concussions that were retrospectively classified as complex.
Conclusions: Specific symptom clusters and neurocognitive test results may have predictive value to classifying and managing concussions.
From the *University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania; and †Department of Orthopedic Surgery, University of Pittsburgh Medical School, Pittsburgh, Pennsylvania.
Submitted for publication December 13, 2007; accepted Janurary 19, 2009.
The following describes the commercial interest of Drs. Mark Lovell and Michael Collins in the Immediate Postconcussion Assessment and Cognitive Testing (ImPACT) software that was used as an outcome measure in the study. Drs. Mark Lovell and Michael Collins are part owners of ImPACT Applications, the company that distributes the ImPACT program. As such, they have a financial interest in the company. Dr. Lovell is the software developer of this program. Dr. Jamie Pardini and Brian Lau are not employees, owners, or shareholders in ImPACT Applications and have no financial interest in ImPACT or ImPACT Applications.
Reprints: Mark R. Lovell, PhD, UPMC Center for Sports Medicine, 3200 South Water St, Pittsburgh, PA 15203 (e-mail: email@example.com).