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Table 2 Performance of the PECARN clinical decision rules by age and combinated

From: Validation of the PECARN clinical decision rule for children with minor head trauma: a French multicenter prospective study

  ciTBI Sensitivity Specificity Negative predictive value Positive predictive value
PECARN ciTBI risk group Yes No % (95 % CI) % (95 % CI) % (95 % CI) % (95 % CI)
Children <2 years
 Intermediate or high risk 3 151 100 (29–100) 64 (59–69) 100 (99–100) 2 (0–6)
 Very low risk 0 267     
Children ≥2 years
 Intermediate or high risk 6 298 100 (54–100) 72 (69–75) 100 (99–100) 2 (1–4)
 Very low risk 0 774     
Overall
 Intermediate or high risk 9 449 100 (66–100) 70 (68–72) 100 (99–100) 2 (1–4)
 Very low risk 0 1041     
  1. ciTBI clinically-important traumatic brain injury, PECARN Pediatric Emergency Care Applied Research Network, CI confidence interval