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Table 4 Projected sensitivity for outcomes of clinically important traumatic brain injury (ciTBI), need for neurosurgery and brain injury on computed tomography (CT) based on PECARN data[17]

From: A prospective observational study to assess the diagnostic accuracy of clinical decision rules for children presenting to emergency departments after head injuries (protocol): the Australasian Paediatric Head Injury Rules Study (APHIRST)

Outcome Number of patients predicted Projected performance of CDR in predicting outcome (sensitivity) Sensitivity% 95% confidence interval
ciTBI 50 50/50 100 93-100
50 49/50 98 89-100
50 48/50 96 86-99.5
50 47/50 94 83-99
Need for neurosurgery 30 30/30 100 88-100
30 29/30 96.5 83-100
Brain injury on CT 300 300/300 100 98.8-100
  300 290/300 97 94-98
  1. CDR clinical decision rule.