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Risk of Repeat Concussion Among Patients Diagnosed at a Pediatric Care Network
Allison E Curry1, Kristy B Arbogast1, Kristina B Metzger2
1Center for Injury Research and Prevention, Children's Hospital of Philadelphia, Philadelphia, PA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Insights
Approximately 1 in 6 children experience a repeat concussion within two years. Older age, longer recovery, and more symptoms after the initial concussion increase this risk.
Area of Science:
- Pediatric Neurology
- Sports Medicine
- Public Health
Background:
- Concussions in children are a significant public health concern.
- Understanding the risk factors for repeat concussions is crucial for effective management and prevention.
Purpose of the Study:
- To quantify the risk of repeat concussions in children aged 5-15 years.
- To identify demographic and clinical factors associated with repeat concussion injuries.
Main Methods:
- Retrospective cohort study using electronic health records from a large children's hospital network.
- Analysis of 536 patients aged 5-15 years diagnosed with an index concussion between July 2012 and June 2013.
- Follow-up for 2 years to identify repeat concussion diagnoses and abstract clinical data.
Main Results:
- 16.2% of children experienced at least one repeat concussion within 2 years.
- Risk of repeat concussion increased with age, particularly in the 12-15 year group (19.8%).
- Longer clinical course (>30 days) and higher symptom burden (>11 symptoms) significantly elevated the risk of repeat concussion.
Conclusions:
- About 1 in 6 youth sustain a repeat concussion within two years.
- Specific clinical features of the initial concussion, such as prolonged symptoms and high symptom burden, are key predictors of future injury.
- Identifying these risk factors is vital for improving concussion care and implementing targeted prevention strategies.
Objective:
To quantify the risk of repeat concussions for children and identify demographic and clinical aspects of the index concussion associated with repeat injury.
Study Design:
For this retrospective cohort study, we queried the Children's Hospital of Philadelphia healthcare network's unified electronic health record to identify all 5- to 15-year-old patients who had their first clinical visit for an index concussion at a Children's Hospital of Philadelphia location from July 2012 through June 2013. A 25% random sample (n = 536) were selected. Clinical data were abstracted for their index concussion and all concussion-related visits for 2 years following the index concussion.
Results:
Overall, 16.2% (n = 87) of patients experienced at least 1 repeat concussion within 2 years of their index concussion. The risk of repeat concussion increased with patient age (9.5% for ages 5-8 years; 10.7% for ages 9-11 years; and 19.8% for ages 12-15 years). After we adjusted for other factors, risk was particularly heightened among patients whose index concussion had a longer clinical course (>30 vs 0-7 days, adjusted risk ratio 1.65 [1.01-2.69]) and greater symptom burden (>11 vs 0-2 symptoms, adjusted risk ratio 2.12 [1.12-3.72]).
Conclusions:
We estimate that 1 in 6 youth diagnosed with a concussion are diagnosed with a subsequent concussion within 2 years and that several clinical characteristics of the index concussion increase this risk. Identifying factors associated with a repeat injury is essential to inform the clinical management of concussion and direct injury prevention efforts.
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