Marijuana consumption skews workforce drug test positivity rates

Sources: Quest Diagnostics, Secaucus, N.J.; CP staff The Covid-19 pandemic did not dampen workforce drug testing positivity for marijuana, which continued to increase last year in the general U.S. workforce, according to a new Quest Diagnostics analysis. Based on seven million-plus urine drug tests collected between January and December 2020, the overall rate of 4.4 percent was down only slightly…

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