Brain Injuries/complications; Brain Injuries/diagnosis; Cognition Disorders/etiology; Evoked Potentials, Somatosensory; Recovery of Function; Activities of Daily Living; Adult; Aged; Brain Injuries/therapy; Cognition Disorders/epidemiology; Cognition Disorders/physiopathology; Cohort Studies; Coma/complications; Coma/diagnosis; Coma/therapy; Critical Care/methods; Early Diagnosis; Female; Follow-Up Studies; Glasgow Coma Scale; Glasgow Outcome Scale; Hospitals, University; Humans; Injury Severity Score; Intensive Care Units; Logistic Models; Male; Middle Aged; Neuropsychological Tests; Predictive Value of Tests; Probability; Prospective Studies; Risk Assessment; Statistics, Nonparametric; Young Adult