Tag: Drug Testing Index (DTI)


Gain insights from 25 years of drug testing data

November 13, 2013

Our webinar features milestones and lessons learned from an unprecedented analysis of more than 125 million urine drug tests from the past 25 years.


Drug Testing Index: A look at 2003 – 2007

October 29, 2013

The Quest Diagnostics Drug Testing Index reveals insights into patterns of drug use among the American workforce. As we celebrate our 30th anniversary, we take a deeper look at overall positivity rates and key milestones from 2003 to 2007.