Which head injury decision rule for children is most accurate?

BEEM Bottom Line

Why is this study important?

There are currently 3 clinical decision rules (CDRs) for pediatric head injury (HI). Due to differences in study populations, direct head-to-head comparison has been difficult. This is the first large, prospective, external validation study to compare the performances using rule-specific inclusion and exclusion criteria and outcomes for each rule on a pragmatic population of pediatric HI that reflects real-world emergency medicine decision-making.

Which, if any, threats to validity are most likely to have an impact on the results and how?

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