title: Initial reliability and validity of the Ohio State University TBI Identification Method.
abstract: OBJECTIVE
  Evaluate the psychometric properties of indices of a lifetime history of traumatic brain injury (TBI).
  
  
  METHODS
  Convenience samples recruited from 2 treatment programs for persons with substance use disorders: N = 119 (study 1) and N = 103 (study 2)
  
  
  METHODS
  Test interrater reliability (study 1) and predictive validity (Study 2).
  
  
  METHODS
  Summary indices of the number, severity, timing, and effects of lifetime TBIs calculated from data elicited via a structured interview.
  
  
  RESULTS
  Interrater reliability was high. Factor analysis showed indices could be characterized by severity weighted counts of the number of injuries, both lifetime and in childhood, number of symptoms persisting, worst injury, time since last TBI with loss of consciousness, and age at first TBI with loss of consciousness. Age at injury and symptoms persisting contributed independently to the prediction of common cognitive and behavioral consequences of TBI.
  
  
  CONCLUSIONS
  These results provide preliminary support for the reliability and validity of summary indices of lifetime history of TBI elicited via a structured interview.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Ohio State University, Columbus 43210, USA. corrigan.1@osu.edu
authors.forename: John D
authors.initials: JD
authors.lastname: Corrigan
authors.forename: Jennifer
authors.initials: J
authors.lastname: Bogner
mesh_terms: D000328:Adult; D000367:Age Factors; D000554:Ambulatory Care Facilities; D001288:Attention; D001930:Brain Injuries / Q000453:epidemiology*; D003072:Cognition Disorders / Q000453:epidemiology; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D015601:Injury Severity Score; D007398:Interpersonal Relations; D008297:Male; D008403:Mass Screening; D008569:Memory Disorders / Q000453:epidemiology; D025341:Principal Component Analysis; D011594:Psychometrics; D015203:Reproducibility of Results; D012494:Sampling Studies; D019966:Substance-Related Disorders / Q000453:epidemiology; D011795:Surveys and Questionnaires; D013997:Time Factors; D014474:Unconsciousness; D014505:Urban Population