Tag: Dr. Barry Sample

News

Series: Assessing drug use trends in the United States

March 17, 2015

Join us over the next several weeks as we use several renowned sources to compare and contrast the latest trends in drug use.

News

Dissecting the data

February 11, 2015

Dr. Barry Sample, Quest Diagnostics, pours through the numbers in his DATIA Focus article “Assessing Drug Use Trends in the United States.”

Illicit drugs

Marijuana positivity increases

October 1, 2014

Marijuana positivity increases 6.2% nationally in urine drug tests, but by double digits in Colorado and Washington reports Drug Testing Index.

News

Positivity is up for the first time in a decade

September 25, 2014

After years of declines, the prevalence of positive workforce drug tests is increasing according to the Quest Diagnostics Drug Testing Index data.

News

Workforce drug test positivity rate increases

September 11, 2014

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.

New to Drug Testing

New to drug testing: Over but not out

May 1, 2014

Whether you’ve been in the industry for two weeks or twenty years, in some ways, we are all new to drug testing.

New to Drug Testing

New to drug testing: Drug Testing Index

November 26, 2013

The Drug Testing Index has been the industry’s ‘go-to’ report on drug use trends for more than 25 years.

News

Drug use among American workers declined 74% over the past 25 years

November 18, 2013

Today marks the 25th anniversary of the Drug-Free Workplace Act and the Quest Diagnostics Drug Testing Index. Drug testing continues to be a deterrent of drug use.

News

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.

News

Drug Testing Index: A look at 1998 – 2002

October 22, 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 1998 to 2002.