Table 7.

Incidence of Deterioration in Children With Normal CT

First AuthorYearDesignEligibility CriteriaN <2 YearsIncidence of Deterioration
Greenes211999Prospective cohort<2, in ED for HT6080/104
Quayle81997Prospective cohortNontrivial HT; CT and SR134 total0/105 with normal CT deteriorated
Schunk231996Retrospective cohort<18, CT for HT, alert, normal neuro960/52 with normal CT had a repeat CT, surgery, or returned to ED
  • ED indicates emergency department; neuro, neurologic examination.