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2007 National Roadside Survey of Alcohol and Drug Use by Drivers

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<strong>2007</strong> <strong>National</strong> <strong>Roadside</strong> <strong>Survey</strong> <strong>of</strong> <strong>Alcohol</strong> <strong>and</strong> <strong>Drug</strong> <strong>Use</strong> <strong>by</strong> <strong>Drivers</strong>: <strong>Drug</strong> ResultsComparison <strong>of</strong> drug categories <strong>by</strong> age (Table 128) revealed that drivers aged 16-20 <strong>and</strong> 21-34had the highest percentage <strong>of</strong> drug-positive results for “Illegal” (“Illegal” plus “Illegal <strong>and</strong>Medications”) drugs (p < .01).Table 128. <strong>Drug</strong> Categories Distribution <strong>by</strong> Age (Oral Fluid <strong>and</strong>/or Blood)Age <strong>Drug</strong> CategoryN(Unweighted)%(Weighted)Illegal 131 15.5%Medications 15 1.9%16-20 Illegal & Medications 14 1.4%Negative 814 81.2%Overall 974 100.0%Illegal 329 14.8%Medications 70 2.2%Illegal & Medications21-3437 1.2%Negative 2,015 81.8%Overall 2,451 100.0%Illegal 91 8.2%Medications 78 8.1%35-44 Illegal & Medications 15 0.8%Negative 862 83.0%Overall 1,046 100.0%Illegal 68 5.7%Medications 101 5.4%45-64 Illegal & Medications 12 1.0%Negative 1,044 87.9%Overall 1,225 100.0%Illegal 0 0.0%Medications 13 4.0%65+ Illegal & Medications 0 0.0%Negative 135 96.0%Overall 148 100.0%“Medications” includes prescription <strong>and</strong> over-the-counter drugs.Driver <strong>Drug</strong> <strong>Use</strong> Prevalence from Oral Fluid <strong>and</strong>/or Blood<strong>and</strong> BAC ResultsThe following section presents the results <strong>of</strong> the oral fluid <strong>and</strong> blood analyses combined with theblood alcohol concentration (BAC) results obtained through breath tests.Tables 129 <strong>and</strong> 130 show the number <strong>of</strong> drug-positive drivers <strong>by</strong> BAC level. As seen in Table129, drug-positive drivers (4.1%) were significantly more likely to have a BAC <strong>of</strong> .08 or higherthan were drug negative drivers (1.7%) (p < .01).98

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