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Indicators of School Crime and Safety: 2010
NCES 2011-002
November 2010


Table 16.1.

Percentage of students in grades 912 who reported using marijuana at least one time during the previous 30 days, by location and selected student and school characteristics: Various years, 19932009


Student or school characteristic Anywhere   On school property  
1993 1995 1997 1999 2001 2003   2005   2007 2009   1993 1995   1997   1999 2001   2003   2005 2007   2009  
                                                       
Total 17.7 25.3 26.2 26.7 23.9 22.4   20.2   19.7 20.8   5.6 8.8   7.0   7.2 5.4   5.8   4.5 4.5   4.6  
                                                       
Sex                                                      
Male 20.6 28.4 30.2 30.8 27.9 25.1   22.1   22.4 23.4   7.8 11.9   9.0   10.1 8.0   7.6   6.0 5.9   6.3  
Female 14.6 22.0 21.4 22.6 20.0 19.3   18.2   17.0 17.9   3.3 5.5   4.6   4.4 2.9   3.7   3.0 3.0   2.8  
                                                       
Race/ethnicity1                                                      
White 17.3 24.5 25.0 26.4 24.4 21.7   20.3   19.9 20.7   5.0 7.1   5.8   6.5 4.8   4.5   3.8 4.0   3.8  
Black 18.6 28.6 28.2 26.4 21.8 23.9   20.4   21.5 22.2   7.3 12.3   9.1   7.2 6.1   6.6   4.9 5.0   5.6  
Hispanic 19.4 27.8 28.6 28.2 24.6 23.8   23.0   18.5 21.6   7.5 12.9   10.4   10.7 7.4   8.2   7.7 5.4   6.5  
Asian (2) (2) (2) 13.5 10.9 9.5   6.7   9.4 7.5   (2) (2)   (2)   4.3 4.7 ! 4.3 ! 2.7 ! 2.0  
American Indian/
   Alaska Native
17.4 28.0 44.2 36.2 36.4 32.8   30.3   27.4 31.6   10.1 ! 16.2 ! 21.5 ! 11.4 ! 9.2 8.2   2.9 !
Pacific Islander/
   Native Hawaiian
(2) (2) (2) 33.8 21.9 28.1   12.4 ! 28.7 24.8   (2) (2)   (2)   11.0 6.4 ! 9.1 ! 13.4 ! 9.0  
Two or more races (2) (2) (2) 29.1 31.8 28.3   16.9   20.5 21.7   (2) (2)   (2)   7.8 5.2   11.4 ! 3.6 3.6 ! 5.4  
                                                       
Grade                                                      
9th 13.2 20.9 23.6 21.7 19.4 18.5   17.4   14.7 15.5   4.4 8.7   8.1   6.6 5.5   6.6   5.0 4.0   4.3  
10th 16.5 25.5 25.0 27.8 24.8 22.0   20.2   19.3 21.1   6.5 9.8   6.4   7.6 5.8   5.2   4.6 4.8   4.6  
11th 18.4 27.6 29.3 26.7 25.8 24.1   21.0   21.4 23.2   6.5 8.6   7.9   7.0 5.1   5.6   4.1 4.1   5.0  
12th 22.0 26.2 26.6 31.5 26.9 25.8   22.8   25.1 24.6   5.1 8.0   5.7   7.3 4.9   5.0   4.1 5.1   4.6  
                                                       
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 two or more races.
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, 1993–2009.
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