Explaining the recent decline in cocaine use among young adults: further evidence that perceived risks and disapproval lead to reduced drug use.

This paper explores alternative explanations for the recent sharp decline in cocaine use among high school seniors, using questionnaire data from annual nationwide surveys conducted from 1976 through 1988. Results show important parallels with earlier analyses of the longer-term decline in marijuana use. Although lifestyle factors (e.g., religious commitment, truancy, evenings out for fun and recreation) show strong links with use of marijuana and cocaine, these factors have not developed trends in ways that can account for the declines in use of either drug. Reported availability of either drug has not been reduced. Instead, increases in perceived risks and disapproval appear to have contributed substantially to the recent declines in use of marijuana and cocaine. The findings provide strong support for the use of realistic information about risks and consequences as an important ingredient in efforts to prevent drug use. Coupled with the findings on availability, the results emphasize the importance of efforts to reduce demand (as opposed to supply).