Table 1.
Selected characteristics of newly incident cannabis users and never users in 12th-graders (n = 105,019). Unweighted sample data from “Monitoring the Future: Secondary School Students,” United States, 1976–2013.*
| Newly incident users (n = 8,682) % | Never users (n = 96,337) % | |
|---|---|---|
| Sex: | ||
| Male | 45.5 | 44.5 |
| Female | 54.5 | 55.5 |
| Age when assessed, mean (SD) | 17.5 (0.6) | 17.5 (0.6) |
| Race-ethnicity:a | ||
| Non-Hispanic White | 73.3 | 69.7 |
| Non-Hispanic Black | 12.2 | 13.0 |
| Hispanic | 8.1 | 8.7 |
| Other Non-Hispanic | 6.3 | 8.7 |
| Pre-specified stages of the US cannabis epidemic: | ||
| 1976–86 post-Vietnam higher prevalence/incidence | 30.5 | 24.5 |
| 1987–1992 prevalence declined | 16.5 | 23.1 |
| 1993–2000 prevalence rose & stabilized | 25.1 | 24.0 |
| 2001–2013 steady state | 27.9 | 28.5 |
| Cannabis risk perceptions, ‘trial use’: | ||
| ‘Great risk’ to try it just once or twice, % | 14.7 | 17.1 |
| All other responses to ‘trial use’ item, % | 85.3 | 82.9 |
| Cannabis risk perceptions, ‘regular use’: | ||
| ‘Great risk’ to ‘regular use’ item, % | 59.6 | 63.7 |
| All other responses to ‘regular use’ item, % | 40.4 | 36.3 |
a
Due to rounding, these unweighted percentages do not add to exactly 100%. Other non-Hispanic included Asian, Native American/American Indian, Hawaiian/Pacific Islander, and other.
*
The newly incident users were identified on the basis of responses to questionnaire forms 1, 3, and 6; never-users were identified irrespective of the form, based on items about ever-never use of cannabis.