Duration, in years, the participant/subject has used an unprescribed, controlled psychoactive drugs or substances used by the participant/subject.

FITBIR|NIA|PDBP;

2014-04-01

Drug or substance illicit use duration

Corrigan JD, Bogner J, Holloman C. Lifetime history of traumatic brain injury among persons with substance use disorders. Brain Inj. 2012;26(2):139-50.

GENERAL/HD/TBI/TBIACUTE/TBIEPID/TBIMILD/TBIMOD/ Response is obtained by report of the participant/subject or proxy as soon as possible after visit/admission. Document when the behavioral history was collected so as to determine whether this information was obtained prior to study enrollment or later. Do not record medications that are prescribed for medical purposes (these should be entered in the element 'medical history'.) Collect information on substances and medications taken for reasons other than prescription, or taken more frequently or at higher doses than prescribed. Assure participant/subject that information on such use will be treated as strictly confidential. Recommend collection as soon as possible after visit/admission. Substance abuse directly before injury may have contributed to the incident causing injury. In general, substance abuse may indicate increased risk taking behavior. If a class of drug was never used (except if prescribed), then leave years and frequency of use blank and go to the next line in the table Count all years in which some use occurred.

Total years of use of the illicit drugs