Tag: milestones

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Drug Testing Index: A look at 2008 – 2013

November 5, 2013 By

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 2008 to 2013.

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Drug Testing Index: A look at 1998 – 2002

October 22, 2013 By

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 1998 to 2002.

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Drug Testing Index: A look at 1993 -1997

October 15, 2013 By

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 1993 to 1997.

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Drug Testing Index: A look at 1988 – 1992

October 8, 2013 By

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 1988 to 1992.