• Substance use & misuse · Sep 1999

    Agreement between urinalysis and self-reported drug use.

    • R Hamid, S Deren, M Beardsley, and S Tortu.
    • National Development and Research Institutes, Inc., New York, New York 10048, USA.
    • Subst Use Misuse. 1999 Sep 1; 34 (11): 1585-92.

    AbstractOne 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.

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