Retail workers have the highest rate of positive drug tests among industries, new data from testing company Quest Diagnostics shows.
That includes a nearly 43 percent growth in positive results for cocaine, and an increase of more than 18 percent for marijuana in the sector from 2015 to 2017, the research showed.
Overall drug use by the U.S. workforce increased by double digits over the two-year period in five of the 16 industries Quest (NYSE: DGX) analyzed.
The highest rates were in...
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