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NATIONAL INSTITUTE ON DRUG ABUSE EPIDEMIOLOGIC ...

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310<br />

<strong>EPIDEMIOLOGIC</strong> TRENDS IN <strong>DRUG</strong> <strong>ABUSE</strong>—SISVEA<br />

Exhibit 2. First Drug of Use and Current Drug of Use Among Patients at Government Treatment Centers, by<br />

Percent: 1991–June 2004<br />

45<br />

40<br />

35<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

1991<br />

1992<br />

1993<br />

1994<br />

1995<br />

SOURCE: SISVEA—Government treatment centers<br />

Exhibit 3. Natural History of Marijuana Use Among Treatment Patients: January–June 2004<br />

Government Centers<br />

1996<br />

89.6% 84.8%<br />

Marijuana Use a 2nd drug Use a 3rd drug<br />

Alcohol 32.9% Alcohol 24.1%<br />

Tobacco 21.4% Tobacco 21.2%<br />

Cocaine 14.6% Cocaine 20.4%<br />

10.4% Inhalants 11.7% Crack 5.7%<br />

Monodrug users Others 19.4% 15.2% Others 28.6%<br />

Nongovernment Centers<br />

First Drug Current Drug<br />

1997<br />

87.8% 74.4%<br />

Marijuana Use a 2nd drug Use a 3rd drug<br />

Cocaine 26.1% Cocaine 22.8%<br />

Alcohol 17.3% Heroin 18.3%<br />

Inhalants 15.4% Crystal 14.8%<br />

12.2% Crystal 11.1% Inhalants 10.6%<br />

Monodrug users Others 30.1% 25.6% Others 33.5%<br />

SOURCE: SISVEA—Government and nongovernment treatment centers<br />

1998<br />

1999<br />

2000<br />

2001<br />

2002<br />

2003<br />

2004 *<br />

Marijuana<br />

Inhalants<br />

Alcohol<br />

Cocaine<br />

Heroin<br />

45<br />

40<br />

35<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

1991<br />

1992<br />

1993<br />

1994<br />

1995<br />

1996<br />

1997<br />

Proceedings of the Community Epidemiology Work Group, Vol. II, January 2005<br />

1998<br />

1999<br />

2000<br />

2001<br />

2002<br />

2003<br />

2004 *

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