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Johnston, Lloyd, Patrick M. O'Malley, Jerald Bachman, and John E. Schulenberg. 2006. Monitoring the Future national survey results on drug use , 1975-2005. Volume II: college students and adults ages 19-45 (NIH Publication No. 06-5884). Bethesda, MD: National Institute on Drug Abuse.
This volume provides findings on the prevalence and trends in drug use among adults through age 45 who have completed high school. The period of young adulthood (here defined as late teens to age 30) is particularly important because it has tended to be the period of peak use for many drugs. The Monitoring the Future study design calls for biennial follow-ups—through age 30—of a randomly selected subsample of the respondents in each participating senior class, beginning with the class of 1976. After age 30, the class cohorts are followed up at five-year intervals—to date at ages 35, 40, and 45—using somewhat different questionnaires.
Country of focus: United States of America.