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National Drug Control Strategy
Update 2003

February 2003

Table 9. Trends in Harmfulness of Drugs as Perceived by 10th Graders, Monitoring the Future Study, 19912002

Drug Behavior
Percentage saying “great risk“1
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2001-2002 Change
How much do you think people risk harming themselves (physically or in other ways), if they . . .
Try marijuana once or twice
40.4
39.1
36.2
31.6
28.9
27.9
25.3
28.1
28.0
29.0
27.7
28.2
+0.5
Smoke marijuana occasionally
57.9
56.3
53.8
48.6
45.9
44.3
43.1
45.0
45.7
47.4
46.3
46.0
-0.3
Smoke marijuana regularly
83.8
82.0
79.6
74.3
73.0
70.9
72.7
73.0
73.9
74.8
72.2
71.7
-0.5
Try crack once or twice2
62.8
61.2
57.2
54.4
50.8
51.0
49.9
49.3
48.7
48.5
48.6
47.4
-1.2
Take crack occasionally2
82.2
79.6
76.8
74.4
72.1
71.6
71.2
70.6
70.6
70.1
70.0
69.7
-0.2
Try cocaine powder once or twice2
55.5
54.1
50.7
48.4
44.9
45.2
45.0
44.0
43.3
43.3
43.9
43.2
-0.7
Take cocaine powder occasionally2
77.0
74.3
71.8
69.1
66.4
65.7
65.8
65.2
65.4
65.5
65.8
64.9
-0.9
Approximate N
17,437
18,662
18,366
17,394
17,501
17,926
18,765
18,100
16,700
17,300
16,200
15,100
 
Note: s=.05; any inconsistency between the 20002001 change estimate and the respective prevalence estimates is due to rounding.
1Answer alternatives were: (1) no risk, (2) slight risk, (3) moderate risk, (4) great risk, and (5) can't say, drug unfamiliar.
2Beginning in 1997, data based on two-thirds of N indicated due to changes in questionnaire forms.
Source: Institute for Social Research, University of Michigan, Monitoring the Future study (December 2002).

 


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Last Updated: May 7, 2003