DENVER BUSINESS JOURNAL - A laboratory services company is encouraging employers to be more active combating workplace substance abuse after a new report shows positive tests for illicit drug use reaching a 10-year high.
The report, from Quest Diagnositcs, found that 4 percent of the tests it analyzed from 2015 came back positive. That compares to 3.9 percent in 2014, 3.7 percent in 2013 and 3.5 percent annually from 2010 through 2012. Last year's positive test rate was the highest annual rate since 2005, when Quest said 4.1 percent of tests came back positive.
For the study, Quest (NYSE: DGX) analyzed about 11 million urine, oral fluid and hair tests performed last year. According to the company:
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