2007 National Roadside Survey of Alcohol and Drug Use by Drivers

2007 National Roadside Survey of Alcohol and Drug Use by Drivers: Drug ResultsTable 124. Drug Classes Distribution by Age (Oral Fluid and/or Blood)Drug Class16-20%21-34%35-44%45-64%65+%Total%N=974 N=2,451 N=1,046 N=1,225 N=148 N=5,844Antidepressants 0.4% 0.3% 0.9% 1.5% 0.6% 0.7%Marijuana 12.0% 9.2% 4.6% 1.1% 0.0% 6.9%Narcotic-Analgesics 1.2% 0.8% 4.3% 1.4% 0.4% 1.6%Sedatives 0.0% 0.6% 1.5% 1.2% 3.0% 0.9%Stimulants 2.2% 3.3% 3.1% 4.7% 0.0% 3.3%Other 0.2% 0.5% 0.2% 0.1% 0.0% 0.3%More than 1 Class 2.7% 3.6% 2.3% 2.2% 0.1% 2.8%Overall Drug Positive 18.8% 18.2% 17.0% 12.1% 4.0% 16.5%Negative 81.2% 81.8% 83.0% 87.9% 96.0% 83.5%“More than 1 Class” – Drivers testing positive for more than one drug are only counted in thiscategory.In this table, percentages are weighted.Driver Drug Use Prevalence by Drug Category Based on Oral Fluidand/or Blood ResultsIn this section of the report, we display drug use prevalence results from the combined results oforal fluid and blood tests by drug category as described in Table 18.Table 125 shows that 11.3 percent of drivers tested positive for “Illegal” drugs, and an additional1.1 percent tested positive for “Illegal” drugs in conjunction with “Medications”. Thus, a total of12.4 percent tested positive for “Illegal” drugs, of which 1.1 percent also tested positive for a“Medication”.Table 125. Drug Categories Distribution (Oral Fluid and/or Blood)Drug CategoryN(Unweighted)%(Weighted)Illegal 621 11.3%Medications 277 3.9%Illegal & Medications 78 1.1%Negative 4,934 83.7%Overall 5,910 100.0%“Medications” includes prescription and over-the-counter drugs.Table 126 displays the drug category results by region. No statistically significant differenceswere found in the prevalence of “Illegal” drugs across regions.96