Validation of the “CHIIDA” and Application for PICU Triage in Children with Complicated Mild Traumatic Brain Injury

External validation study confirms the CHIIDA tool accurately predicts need for neurosurgical intervention in children with complicated mild TBI (94% sensitivity, 69% specificity). However, using CHIIDA for PICU triage decisions would increase unnecessary ICU admissions by 71%, suggesting it performs better as a risk stratification tool than a direct triage instrument.