Comparison Between the IMPACT's Score and the Clinician's Perception to Predict the Prognosis of Severe and Moderate Traumatic Brain Injury

"* Two clinicians will complete a questionnaire that analyses their perception of the patient's prognosis at Day1 and Day7.~* At 6 months, another clinician will establish the patient prognosis using Glasgow Outcome Scale and Glasgow outcome scale extended. This clinician must not know the patient's IMPACT score and prognosis established at Day 1 and Day 7. His evaluation will be compare to the patient's prognosis established previously (Day1 and Day7)."