@article{ref1,
title="Do initial symptom factor scores predict subsequent impairment following concussion?",
journal="Clinical journal of sport medicine",
year="2018",
author="Cohen, Paul E. and Sufrinko, Alicia and Elbin, Robert J. and Collins, Michael W. and Sinnott, Aaron M. and Kontos, Anthony P.",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="OBJECTIVE: Symptom factors present during the first week following concussion may predict subsequent concussion outcomes and recovery duration. We hypothesized that a high loading on cognitive-fatigue-migraine and somatic factors would be predictive of neurocognitive impairment following concussion. We also hypothesized that the affective factor would be related to vestibular symptoms and impairment. <br><br>DESIGN: Prospective repeated measures. SETTING: Concussion specialty clinic. PARTICIPANTS: Athletes aged 13 to 20 years diagnosed with a concussion within the past 7 days. INDEPENDENT VARIABLE: Symptom factors at the initial visit 1 to 7 days after injury. MAIN OUTCOME MEASURE: Symptom factor score, neurocognitive testing, and vestibular/ocular motor assessment at the second visit (2-4 weeks after injury). <br><br>RESULTS: The somatic symptom factor from the initial visit was significant (P < 0.05) in all vestibular/ocular screening components (P < 0.05) but not neurocognitive test performance (P > 0.05) at the second visit. The cognitive-migraine-fatigue and affective symptom factors predicted symptom burden at the second visit (P < 0.001) but did not predict recovery time (P = 0.200). <br><br>CONCLUSIONS: The somatic symptom factor during the first week after injury predicted symptom provocation during vestibular/ocular screening at 2 to 4 weeks after injury. Specifically, higher scores on somatic symptom factor at the initial visit predicted worse symptom reporting for all vestibular/ocular screening components at the second visit. Patients with higher scores on the cognitive-migraine-fatigue and affective symptom factors at the initial visit predicted total symptom burden at the second visit.<p /> <p>Language: en</p>",
language="en",
issn="1050-642X",
doi="10.1097/JSM.0000000000000581",
url="http://dx.doi.org/10.1097/JSM.0000000000000581"
}