Frequency of Individual Candidate Criteria

Criterion0–18 y0–3 y
No ICI (N = 1528), %ICI (N = 138), %No ICI (N = 284), %ICI (N = 25), %
Spontaneous eye opening94489348
Able to follow commands91447333
Seizure after the trauma6698
Loss of consciousness55753264
Prolonged loss of consciousness (reliably witnessed, >5 min)742838
Severe or progressive headache152050
Abnormal behaviora23483655
Altered level of alertnessa27663168
Evidence of significant skull fracturea328211
Persistent vomitinga11241313
Evidence of intoxication5410
Motor deficit321226
Gait abnormality521622
Abnormal cerebellar212122
Cranial nerve abnormality152120
Inability to read or write11533664
Scalp hematomaa37594165
Composite score, neurologic deficita,b32815481
GCS 15c82315826
  • In this table, ICI refers to cases of clinically important ICI. The numbers in the cells represent the percentage at which each criterion was present, among all of the cases in which the physician stated that the criterion was assessable (ie, not unknown or unable to assess). GCS indicates Glasgow Coma Scale.

  • a These 7 criteria compose the decision instrument.

  • b Neurologic deficit is a composite variable that combines the responses to the first 3 items of the Glasgow Coma Scale score (spontaneous eye opening, orientation, ability to follow commands), motor deficit, gait abnormality, abnormal cerebellar function, and cranial nerve abnormality.

  • c Normal GCS (GCS 15) was not assessed by the physicians but calculated for each patient on the basis of the reported individual criteria.