Workplace Drug Test Positivity Rates for Cocaine and Amphetamine

"Cocaine Use Is Decreasing
"According to the January to June 2012 DTI oral fluid data, the cocaine positivity rate was down 14.6% compared to 2011, continuing a downward trend from previous years; cocaine oral fluid positives in 2011 were down 10.9% compared to 2010. According to SAMHSA, in 2011, there were an estimated 1.4 million current cocaine users aged 12 or older, comprising 0.5% of the population.
"Amphetamines Use Continues Five-Year Upward Trend
"The 2012 DTI urine data further reports that amphetamines positives continue a five-year upward trend. In urine drug testing in the U.S. general workforce, the amphetamines positivity rate increased 11.7%, from 0.77% in 2011 to 0.86% from January to June 2012. In the federally mandated, safety-sensitive workforce, amphetamines positives increased 6.8%, from 0.44% in 2011 to 0.47% in the first half of 2012."


"Pre-Employment Drug Test Positives Increase More Than 5%, According to New Data from Quest Diagnostics Drug Testing Index," Quest Diagnostics, March 7, 2013. Last accessed May 13, 2013.