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Table 1 Sample characteristics (unweighted N= 10,050)

From: Perceived neighborhood illicit drug selling, peer illicit drug disapproval and illicit drug use among U.S. high school seniors

Variable N Unweighted %
Age, years   
< 18 years 4,340 43.2
≥ 18 years 5,678 56.5
Missing 32 0.3
Sex   
Male 4,521 44.9
Female 5,129 51.3
Missing 400 3.8
Race/ethnicity   
White 6,114 62.3
Black 1,092 10.6
Hispanic 1,403 13.8
Missing 1,441 13.4
Population density   
Non-Metropolitan Statistical Area (MSA) 2,007 22.4
Small MSA 4,673 49.2
Large MSA 3,370 28.4
Religiosity   
Low 3,124 31.2
Moderate 2,228 21.5
High 2,386 24.4
Missing 2,312 23.0
Parent education   
Low 2,870 28.7
Moderate 2,853 28.9
High 4,027 39.4
Missing 300 3.0
Evenings out per week for fun   
0-1 2,652 27.3
2-3 5,127 50.5
4-7 2,188 21.3
Missing data 83 0.9
Friend marijuana disapproval   
None 4,295 41.5
Disapproval, but not strongly 2,325 23.0
Strongly disapprove 3,430 35.5
Friend cocaine disapproval   
None 994 9.8
Disapproval, but not strongly 1,843 18.1
Strongly disapprove 7,213 72.1
Perceived neighborhood drug sales   
Never 6,120 61.8
A few times per year 1,607 15.7
Once or twice a month 769 7.7
One or more per week 779 7.3
Almost every day 775 7.6
12-month illicit drug use   
None 6,372 64.0
Use of marijuana only 1,972 18.8
Use of one illicit drug 747 7.3
Use of more than one illicit drug 959 9.9
30-day illicit drug use   
None 7,803 77.8
Use of marijuana only 1,412 13.8
Use of one illicit drug 440 4.4
Use of more than one illicit drug 395 4.1