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Indicators of School Crime and Safety: 2008
NCES 2009-022
April 2009

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Table 16.1.

Percentage of students in grades 9–12 who reported using marijuana during the previous 30 days, by location and selected student and school characteristics: Various years, 1993–2007


Student or school characteristic Anywhere   On school property
1993 1995 1997 1999 2001 2003   2005   2007 1993 1995   1997   1999 2001   2003   2005 2007  
Total  17.7 25.3 26.2 26.7 23.9 22.4   20.2   19.7   5.6 8.8   7.0   7.2 5.4   5.8   4.5 4.5  
                                                 
Sex                                                 
Male  20.6 28.4 30.2 30.8 27.9 25.1   22.1   22.4   7.8 11.9   9.0   10.1 8.0   7.6   6.0 5.9  
Female  14.6 22.0 21.4 22.6 20.0 19.3   18.2   17.0   3.3 5.5   4.6   4.4 2.9   3.7   3.0 3.0  
                                                 
Race/ethnicity1                                                 
White  17.3 24.5 25.0 26.4 24.4 21.7   20.3   19.9   5.0 7.1   5.8   6.5 4.8   4.5   3.8 4.0  
Black  18.6 28.6 28.2 26.4 21.8 23.9   20.4   21.5   7.3 12.3   9.1   7.2 6.1   6.6   4.9 5.0  
Hispanic  19.4 27.8 28.6 28.2 24.6 23.8   23.0   18.5   7.5 12.9   10.4   10.7 7.4   8.2   7.7 5.4  
Asian  (2) (2) (2) 13.5 10.9 9.5   6.7   9.4   (2) (2)   (2)   4.3 4.7 ! 4.3 ! 2.7 !
American Indian/
Alaska Native 
17.4 28.0 44.2 36.2 36.4 32.8   30.3   27.4   10.1 ! 16.2 ! 21.5 ! 11.4 ! 9.2 8.2  
Pacific Islander/
Native Hawaiian 
(2) (2) (2) 33.8 21.9 28.1   12.4 ! 28.7   (2) (2)   (2)   11.0 6.4 ! 9.1 ! 13.4 !
More than one race  (2) (2) (2) 29.1 31.8 28.3   16.9   20.5   (2) (2)   (2)   7.8 5.2   11.4 ! 3.6 3.6 !
                                                 
Grade                                                 
9th  13.2 20.9 23.6 21.7 19.4 18.5   17.4   14.7   4.4 8.7   8.1   6.6 5.5   6.6   5.0 4.0  
10th  16.5 25.5 25.0 27.8 24.8 22.0   20.2   19.3   6.5 9.8   6.4   7.6 5.8   5.2   4.6 4.8  
11th  18.4 27.6 29.3 26.7 25.8 24.1   21.0   21.4   6.5 8.6   7.9   7.0 5.1   5.6   4.1 4.1  
12th  22.0 26.2 26.6 31.5 26.9 25.8   22.8   25.1   5.1 8.0   5.7   7.3 4.9   5.0   4.1 5.1  
                                                 
Urbanicity                                                 
Urban  26.8 27.5 25.6 23.4         8.0   8.5 6.8   6.8    
Suburban  27.0 26.1 22.5 22.8         7.0   6.4 4.7   6.0    
Rural  21.9 28.0 26.2 19.9         4.9 ! 8.1 5.3   3.9    
— Not available.
! Interpret data with caution.
‡ Reporting standards not met.
1 Race categories exclude persons of Hispanic ethnicity.
2 The response categories for race/ethnicity changed in 1999 making comparisons of some categories with earlier years problematic. In 1993, 1995, and 1997, Asian students and Pacific Islander students were not categorized separately and students were not given the option of choosing more than one race.
NOTE: "On school property" was not defined for survey respondents. The term "anywhere" is not used in the YRBS questionnaire; students are simply asked how many times during the past 30 days they used marijuana.
SOURCE: Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Youth Risk Behavior Surveillance System (YRBSS), various years, 1993–2007.
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