Abstract
Prognostic indicators of outcomes following sport-related concussion (SRC) managed in the primary care setting are understudied. PURPOSE: This study examines the relationship between acute post-concussion measures and one-month parent reported health-related quality of life in pediatric concussion patients. METHODS: This was a prospective cohort presenting to 3 clinics of a single practice group from December 2014-September 2016. Included were patients 8-18 years, presenting within 3 days of a SRC, who consented to participate, and whose parents completed a one-month follow-up. Participants completed a standardized initial visit, including a clinical exam, a symptom checklist, the Immediate Post-Concussion and Cognitive Test (ImPACTTM), and a near point convergence screening. Parents completed a one-month follow-up about their child [PedsQLTM Quality of Life Inventory (QOL) and the PedsQLTM Multidimensional Fatigue Scale (MDF)]. We assessed univariate relationships between demographics, initial presentation measures, and one-month follow-up QOL and MDF. Variables significant in univariable analyses (p<0.05) were included in multivariable regression models. RESULTS: A total of 180 patients met initial inclusion and completed the one-month follow-up [% follow-up = 75% (180/240 eligible at initial visit)]: 100 (55.9%) were male, 136 (88.9%) Caucasian, and 28 (15.6%) were injured in football. Median age was 15 years (IQR: 13.0, 16.0). In the QOL model, a 10 point estimated increase in symptom severity score (Beta=-1.825; 95% CI: -3.335, -0.314) and no previous head injury (Mean Difference: -5.751; 95% CI: -11.089 -0.412) were associated with worse one-month QOL. A 0.06 point increase in initial visit ImPACTTM Reaction Time (Beta=-2.120; 95% CI: -3.898 -0.343) was associated with worse one-month MDF in the MDF model. CONCLUSION: Clinicians should be mindful of acute symptom burden and those with no history of concussion when considering potential for worse one-month post-injury QOL outcomes. Those with initial longer reaction times may be more likely to experience fatigue over the first month following concussion. Clinicians may need to consider early intervention in patients with these characteristics. Funded in part by the National Operating Committee on Standards for Athletic Equipment.
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