Drug use among American workers appears to be increasing, based on the results of drug tests. Traces of drugs were found in 3.9 percent of urine tests conducted for employers last year, up from 3.7 percent in 2013, according to The Wall Street Journal.
Before 2013, positive drug tests decreased almost every year for 24 years, from 13.6 percent in 1988 to 3.5 percent in 2013.
Some positive drug test results are discounted if a worker can produce a doctor’s prescription for a legal drug, but most of the positive tests reflect illicit use, according to Dr. Barry Sample of Quest Diagnostics, which released the findings this week. He said the rising positive drug test rate is driven by increases in marijuana, cocaine and methamphetamine use.