Following years of declines, the percentage of employees in the combined U.S. workforce testing positive for drugs has steadily increased over the last three years to a 10-year high, according to an analysis of nearly 11 million workforce drug test results by Quest Diagnostics.
The Quest Diagnostics Drug Testing Index examines illicit drug use by America’s workforce based on an analysis of de-identified results of more than 9.5 million urine, 900,000 oral fluid and 200,000 hair laboratory-based tests performed nationally by the company for employers in 2015. The findings were unveiled at the Substance Abuse Program Administrators Association (SAPAA) annual conference.
