title: Late post-concussional symptoms in traumatic head injury. An analysis of frequency and risk factors.
abstract: During follow-up of 485 adult patients with traumatic head injury, 51% of the patients reported new post-concussional symptoms after an observation period of 3-5 years (mean 4.0 years). Most data, including the level of consciousness on admission, length of post-traumatic amnesia and days of hospitalization were poor parameters for predicting which patients would suffer late complications. A few variables were statistically of predictive importance: Sex, repeated head injury and skull fracture. Age was a risk factor for multiple complaints.
mesh_terms: D000293:Adolescent; D000328:Adult; D001007:Anxiety / Q000209:etiology; D001924:Brain Concussion / Q000150:complications*; D005260:Female; D005500:Follow-Up Studies; D006261:Headache / Q000209:etiology; D006408:Hematoma, Subdural / Q000150:complications; D006801:Humans; D008297:Male; D008569:Memory Disorders / Q000209:etiology; D008875:Middle Aged; D011446:Prospective Studies; D012737:Sex Factors; D012887:Skull Fractures / Q000150:complications