Sensitivity | Specificity | Negative predictive value | Positive predictive value | |
Clinically important traumatic brain injury | ||||
PECARN <2 years | 25/25, 100.0% (86.3 to 100) | 1176/2191, 53.7% (51.6 to 55.8) | 1176/1176, 100.0% (99.7 to 100) | 25/1040, 2.4% (1.6 to 3.5) |
PECARN ≥2 years | 61/63, 96.8% (89.0 to 99.6) | 3798/6348, 59.8% (58.6 to 61.0) | 3798/3800, 99.95% (99.81 to 99.99) | 61/2611, 2.3% (1.8 to 3.0) |
CT visible brain injury | ||||
PECARN <2 years | 68/68, 100% (94.7 to 100) | 1176/2148, 54.7%* | 1176/1176, 100% (97.8 to 100) | 68/1040, 6.5%* |
PECARN ≥2 years | 109/116, 94% (88.0 to 97.5) | 3793/6295, 60.3%* | 3793/3800, 99.8% (96.8 to 99.4) | 109/2611, 4.2%* |
Values in parentheses are 95% CIs.
↵* These have been calculated using data in the original reports.
PECARN, Paediatric Emergency Care Applied Research Network.