title: Agreement between urinalysis and self-reported drug use.
abstract: One hundred fifty-eight drug users received an interview that included self-reported drug use. Opiate/cocaine use in the prior 48 hours was assessed by urinalysis. Fifty-five subjects received a urine test after the interview and 103 were tested before. Chi-square tests were performed to determine if agreement between self-reported drug use and urine test results was associated with timing of urine testing. The rate of agreement was 58% when the urine test was performed after the interview and 93% when performed before the interview (chi2 = 28.6, p < .001). Conducting urine tests before an interview can increase the accuracy of self-reports.
authors.affiliation: National Development and Research Institutes, Inc., New York, New York 10048, USA.
authors.forename: R
authors.initials: R
authors.lastname: Hamid
authors.forename: S
authors.initials: S
authors.lastname: Deren
authors.forename: M
authors.initials: M
authors.lastname: Beardsley
authors.forename: S
authors.initials: S
authors.lastname: Tortu
mesh_terms: D000328:Adult; D019970:Cocaine-Related Disorders / Q000517:prevention & control* / Q000652:urine; D005260:Female; D006801:Humans; D007406:Interview, Psychological; D008297:Male; D009293:Opioid-Related Disorders / Q000517:prevention & control* / Q000652:urine; D011237:Predictive Value of Tests; D012650:Self Disclosure; D015813:Substance Abuse Detection / Q000379:methods*; D013997:Time Factors; D016482:Urinalysis