Evaluation of Trends of Near-Real-Time Urine Drug Test Results for Methamphetamine, Cocaine, Heroin, and Fentanyl.

Twillman, Robert K; Dawson, Eric; LaRue, Leah; Guevara, Maria G; Whitley, Penn; Huskey, Angela · JAMA Netw Open · 2020

cross_sectional · Level IV

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Abstract

This cross-sectional study uses nationally representative urine drug test data to analyze changes in positivity rates for methamphetamine, cocaine, heroin, and fentanyl.

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