2007 National Roadside Survey of Alcohol and Drug Use by Drivers

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2007 National Roadside Survey of Alcohol and Drug Use by Drivers: Drug ResultsTable 115. Drug Prevalence by Age and Gender (Oral Fluid and/or Blood)GenderMalesFemalesAgeN(Unweighted)% Drug Positive(Weighted)16-20 605 22.1%21-34 1502 21.1%35-44 634 19.4%45-64 741 10.0%65+ 101 4.0%Overall Males 3583 18.2%16-20 368 14.0%21-34 944 13.5%35-44 409 13.7%45-64 482 15.4%65+ 47 4.2%Overall Females 2250 13.8%Table 116 shows drug prevalence by race/ethnicity. Drivers who identified themselves as Asianwere significantly less likely to be drug positive (1.9%) than drivers who identified themselvesas African American, Hispanic, White, or Other (p < .01). African American drivers were foundto have the highest percentage of drug-positive results (22.4%), which was a significantly higherrate than that of their Hispanic or White counterparts (p < .01).Table 116. Drug Prevalence by Race/Ethnicity (Oral Fluid and/or Blood)Race/EthnicityN(Unweighted)% Drug Positive(Weighted)African American 980 22.4%Asian 191 1.9%Hispanic 1015 13.3%White 3,378 17.2%Other 273 18.1%Overall 5,837 16.5%Race/Ethnic groups other than “Hispanic” are always “non-Hispanic.”As shown in Table 117, drivers who identified themselves as having at least some collegeexperience were statistically less likely to be drug-positive than those reporting being a highschool graduate or less education (p < .01).92
2007 National Roadside Survey of Alcohol and Drug Use by Drivers: Drug ResultsTable 117. Drug Prevalence by Education Level (Oral Fluid and/or Blood)Education LevelN(Unweighted)% Drug Positive(Weighted)Not a High School Graduate 579 20.3%High School Graduate 1482 24.0%Some College 2,234 14.0%College Graduate 1159 10.9%Some Graduate Work 389 16.9%Overall 5,843 16.5%Comparison of drug prevalence by employment status (Table 118) indicated that drivers ondisability showed a drug prevalence that was significantly higher than that of employed drivers(p < .01). The prevalence of drug positives among employed drivers did not differ significantlyfrom that of unemployed drivers. Retired drivers had significantly lower drug prevalence thanemployed drivers (p < .01).Table 118. Drug Prevalence by Employment Status (Oral Fluid and/or Blood)Employment StatusN(Unweighted)% Drug Positive(Weighted)Employed/Self Employed 4,646 16.7%Homemaker 104 8.5%Student 593 15.9%Unemployed 206 18.2%Retired 206 8.3%On Disability 67 44.7%Other 23 15.0%Overall 5,845 16.5%Table 119 shows drug prevalence by vehicle type. Drug prevalence rates among drivers ofvarious vehicle types (passenger vehicle, pickup, SUV, and van/minivans) were statisticallydifferent from motorcyclists, who had the greatest percentage of drug-positive results (p
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2007 National Roadside Survey of Alcohol and Drug Use by Drivers

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