Traumatic brain injury/chronic pain syndrome: a case comparison study.

Objective: To identify the pretreatment characteristics and progress in treatment and outcomes of chronic pain patients, with and without concomitant traumatic brain injury (TBI).

Design And Patients: Retrospective cohort study of 12 consecutive patients in a chronic pain treatment program who were discovered to have previously untreated brain injury and a cohort of 12 chronic pain patients from the same program matched for age and sex who did not have brain injury.

Setting: Interdisciplinary university-based outpatient rehabilitation medicine clinic.