Tag: interactive drug use map

News

Drug Testing Index: A look at 2014-2018

May 10, 2018 By

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.

By the Numbers

Mapping drug use in the U.S. workforce

June 9, 2017 By

Our new interactive map, powered by Drug Testing Index data, illustrates workplace urine drug test positivity by drug type for the past 10 years.