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On-the-Job Drug Use Increases

Highest drug positivity in 12 years

May 30, 2017
On the job drug use increases

Quest Diagnostics presented its 2016 Drug Testing Index at the Drug and Alcohol Testing Industry Association (DATIA) conference in Orlando earlier this month, and the results were sobering: Drug use in the American workforce, fueled by illicit drugs, reached the highest positivity rate in 12 years, according to an analysis of more than ten million workforce drug test results.

Overall positivity in urine drug testing among the combined U.S. workforce in 2016 was 4.2 percent, a 5 percent relative increase over 2015's rate of 4.0 percent, and the highest annual positivity rate since 2004's 4.5 percent. 

“This year’s findings are remarkable because they show increased rates of drug positivity for the most common illicit drugs across virtually all drug test specimen types and in all testing populations,” said Barry Sample, PhD, senior director, science and technology, Quest Diagnostics Employer Solutions. “Our analysis suggests that employers committed to creating a safe, drug-free work environment should be alert to the potential for drug use among their workforce.” 

Cocaine - Up 12 percent

The positivity rate in urine testing for cocaine increased for the fourth consecutive year in the general U.S. workforce and for the second consecutive year in the federally-mandated, safety-sensitive workforce. Cocaine positivity increased 12 percent in 2016, reaching a seven-year high of 0.28 percent, compared to 0.25 percent in 2015 in the general U.S. workforce, and seven percent among federally-mandated, safety-sensitive workers to 0.28 percent, compared to 0.26 percent in 2015. 

An interactive map showing urine drug test positivity in the United States (below), can be found at QuestDiagnostics.com/DrugMap.

An interactive map showing urine drug test positivity“Once again, the DTI statistics reveal the on-going threat to workplace safety posed by substance abuse. While the national dialogue swirls around marijuana and opiate issues, we find cocaine—a substance with well-established dangers—continuing its troubling upswing not just in the general workforce, but in safety-sensitive jobs with federally-mandated testing,” said Matt Nieman, General Counsel, Institute for a Drug-Free Workplace and Principal, Jackson Lewis P.C. “That positive test results for cocaine persist, let alone are increasing, should serve as a reminder to employers and employees that there is no substitute for vigilance in any effective effort to thwart the potential impacts of workplace substance abuse.”

Marijuana - Use in Colorado and Washington double the national average

Marijuana positivity continued its upward climb in both the federally-mandated, safety-sensitive and general U.S. workforces. In oral fluid testing, which detects recent drug use, marijuana positivity increased nearly 75 percent, from 5.1 percent in 2013 to 8.9 percent in 2016 in the general U.S. workforce. Marijuana positivity also increased in both urine testing (2.4% in 2015 versus 2.5% in 2016) and hair testing (7.0% in 2015 versus 7.3% in 2016) in the same population.

Among the federally mandated, safety-sensitive workforce, which only utilizes urine testing, marijuana positivity increased nearly ten percent (0.71% in 2015 versus 0.78% in 2016), the largest year-over-year increase in five years. 

In Colorado and Washington, the first states in which recreational marijuana use was legalized, the overall urine positivity rate for marijuana outpaced the national average in 2016 for the first time since the statutes took effect. The increase was more pronounced in Colorado, which increased 11 percent (2.61% in 2015 versus 2.90% in 2016), than in Washington, which increased nine percent (2.82% in 2015 versus 3.08% in 2016). The national positivity rate for marijuana in the general U.S. workforce in urine testing increased four percent (2.4% in 2015 compared to 2.5% in 2016).

“We have been tracking the trends in marijuana positivity in states that have passed medical and recreational marijuana use statutes for several years now. 2016 is the first year since Colorado and Washington approved recreational use that the rates of year-over-year change were sharply higher than the national average,” said Dr. Sample.

Meth and Speed - Increase includes prescription drugs

Amphetamines (which includes amphetamine and methamphetamine) positivity continued its year-over-year upward trend, increasing more than eight percent in urine testing in both the general U.S. and federally-mandated, safety-sensitive workforces compared to 2015. Throughout the last decade, this rise has been driven primarily by amphetamine use which includes certain prescription drugs such as Adderall®

Although methamphetamine positivity in urine testing declined between 2005 and 2008, the positivity rate plateaued between 2008 and 2012, and has increased steadily since. Between 2012 and 2016, it climbed 64 percent in the general U.S. workforce and 14 percent among federally-mandated, safety-sensitive workers. In oral fluid, methamphetamines positivity increased 75 percent between 2013 (0.24%) and 2016 (0.42%). 

Heroin and Opiates - Declining

After four straight years of increases, in 2016, urine testing positivity for heroin, indicated by the presence of the 6-acetylmorphine (6-AM) metabolite, held steady in the general U.S. workforce and declined slightly among federally-mandated, safety-sensitive workers. 

Prescription opiate positivity – including hydrocodone, hydromorphone and oxycodones – declined in urine testing among the general U.S. workforce. Oxycodones have exhibited four consecutive years of declines, dropping 28 percent from 0.96 percent in 2012 to 0.69 percent in 2016. Hydrocodone and hydromorphone both showed double-digit declines in both 2015 and 2016 (0.92% in 2015 to 0.81% in 2016) and (0.67% in 2015 to 0.59% in 2016), respectively. 

In recent years, state and federal authorities have instituted efforts to more tightly control opiate prescribing in order to address the opioid crisis.

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