Tag: drug use in the U.S. workforce

Drug Testing Index: A look at 2014-2018
The Quest Diagnostics Drug Testing Index reveals insights into patterns of drug use among the U.S. workforce on its 30th anniversary. Download our timeline. Continue reading

By   /  May 10, 2018

Workforce drug test positivity rate increases
The Quest Diagnostics Drug Testing Index showed the percentage of positive drug tests among American workers has increased for the first time in more than a decade. Continue reading

By   /  September 11, 2014