Abstract
This cross-sectional study uses nationally representative urine drug test data to analyze changes in positivity rates for methamphetamine, cocaine, heroin, and fentanyl.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Aged
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Case-Control Studies
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Cocaine / urine*
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Cross-Sectional Studies
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Female
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Fentanyl / urine*
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Heroin / urine*
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Humans
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Male
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Methamphetamine / urine*
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Middle Aged
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Substance Abuse Detection / statistics & numerical data
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Substance Abuse Detection / trends*
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Urinalysis / statistics & numerical data
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Urinalysis / trends*
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Young Adult
Substances
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Methamphetamine
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Heroin
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Cocaine
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Fentanyl