ABSTRACT
An emerging body of psychiatric evidence over the last 15-20 years confirms an increased relative risk of developing a psychiatric condition following a traumatic brain injury (TBI). These risks include mood and anxiety disorders, psychotic disorders, substance-induced disorders, sexual misbehavior, and aggression. The most common psychiatric diagnoses are those associated with depression, substance abuse, and anxiety disorders. The base rates for lifetime and current risk exceed those found in the epidemiologic catchment area studies. The rates of lifetime depression, panic disorder, and psychotic disorder following TBI are 26%, 8%, and 8%, respectively. The rates of current depression, current panic disorder, and current psychotic disorder following TBI are 10%, 6%, and 8%, respectively.1
