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)

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]

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
Need for neurosurgery	30	29/30	96.5	83-100
Brain injury on CT	300	300/300	100	98.8-100
	300	290/300	97	94-98

ISSN: 1471-2431