Fig. 3From: Validation of the PECARN clinical decision rule for children with minor head trauma: a French multicenter prospective studyFagan nomogram of the PECARN rule. The pre-test probability (prevalence) was 0.6 % (95 % CI 0.27 to 1.14 %) and the post-test probability was 0 % (95 % CI 0 to 1 %) when the rule was negativeBack to article page