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NATIONAL INSTITUTE ON DRUG ABUSE EPIDEMIOLOGIC ...

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

Exhibit 10. Natural History of Cocaine Use Among Treatment Patients: January–June 2004<br />

Government Centers<br />

74.3% 69.3%<br />

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

Alcohol 31.3% Alcohol 28.4%<br />

Marijuana 20.0% Tobacco 26.9%<br />

Tobacco 18.3% Marijuana 19.7%<br />

25.7% Crystal 6.0% 30.7% Inhalants 7.2%<br />

Monodrug users Others 24.4% Others 17.8%<br />

Nongovernment Centers<br />

63.8% 46.3%<br />

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

Marijuana 26.1% Crystal 23.9%<br />

Crystal 20.9% Marijuana 15.2%<br />

Alcohol 15.4% Alcohol 14.6%<br />

36.2% Heroin 12.3% 53.7% Heroin 8.2%<br />

Monodrug users Others 25.3% Others 38.1%<br />

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

Proceedings of the Community Epidemiology Work Group, Vol. II, January 2005 315

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