Chapter 3's Figure 1, a bar chart, depicts the age distribution of the California 33-year Follow-up Study sample of heroin addicts in 1992. The largest number of persons in the sample were 50 to 54 years of age (N = 245). There were five people in the 70 to 74 year-old group and six people in the 75 or older age group.

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This page was last updated on June 16, 2008.

SAMHSA, an agency in the Department of Health and Human Services, is the Federal Government's lead agency for improving the quality and availability of substance abuse prevention, addiction treatment, and mental health services in the United States.