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Table 1 Patient characteristics in the study cohort compared with the validation cohort of PECARN [2]

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

Characteristics Study cohort, n = 1499 n (%) PECARN, n = 8627 n (%)
Median age (IQR), y 3 (1.7–6) 7.1a
Male 955 (64) NR
<2 years of age 421 (28) 2216 (25.7)
Risk of ciTBI
High risk 62 (4.1) 1468 (17) *
  GCS score = 14 23 (1.5) 255 (3) *
  Altered Mental Status 47 (3.1) 1082 (12.6) *
  Signs of basilar skull fracture 26 (2.4) 51 (0.8) *
  Palpable skull fracture 3 (0.7) 80 (3.6) *
Intermediate risk 396 (26.4) 2183 (25.3)
  Severe mechanism of injury 251 (16.7) 1271 (14.9)
  Non frontal haematoma 47 (11.2) 361 (16.5) *
  Loss of consciousness 91 (6.1) 1160 (14.1) *
  Vomiting 183 (17) 1050 (12.3) *
  Severe headache 15 (1.4) 146 (2.8) *
  Not acting normally 29 (6.9) 273 (12.7) *
Very low risk 1041 (69.5) 4976 (57.7) *
CT 76 (5.1) 2917 (33.8) *
Any injury on CT 20 (1.3) 184 (6.3) *
ciTBI 9 (0.6) 88 (1)
Neurosurgery 0 (0) 16 (0.2)
  1. IQR interquartile range, y years, NR not reported, ciTBI clinically-important traumatic brain injury, CT computed tomography
  2. aMean age in derivation and validation cohort; * p-value <0.05