Abstract
Concussions incurred during high school athletics are a significant health concern, and studies examining concussions with symptom resolution time (SRT) of 15-28 days have been limited. To compare concussions that had a SRT of 15-28 days with concussions that had a SRT of >28 days among US High School athletes. Descriptive epidemiology study. Secondary school athletic training clinics. Secondary school athletes. Concussion frequency, symptom number, and symptom prevalence. Among all 917 reported concussions (of which 50.8% had missing SRT), 88 had SRT recorded as 15-28 days and 29 had SRT recorded as >28 days. Greater frequencies of concussions with SRT >15 days were reported among boys' sports (n= 78) than girls' sports (n= 39). Boys' football (51.7%) and girls' basketball (11.5%) accounted for the largest proportions of all reported concussions with SRT of 15-28 days; boys' football (58.6%) accounted for the greatest proportion of concussions reported with SRT >28 days. The average number of symptoms in concussions with SRT of 15-28 days was 6.3±3.4 and 7.2±3.8 in those with SRT >28 days. The most frequently reported symptoms in concussions with both SRT of 15-28 days and >28 days were headache, dizziness, sensitivity to light, and difficulty concentrating. The prevalence of irritability was higher in concussions with SRT of 15-28 days as compared to concussions with SRT >28 days (26.1% vs. 13.8%); visual problems (48.3% vs. 35.2%) and hyperexcitability (24.1% vs. 15.9%) were more prevalent in concussion with SRT >28 days, although differences were not statistically significant. Symptom prevalence and total count were comparable between concussions with SRT of 15-28 days and >28 days with no statistically significant difference, suggesting symptom burden within these groups are more similar than they are different.
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