Research Article
An Epidemiological Model for Examining Marijuana Use over the Life Course
Table 4
Comparison of the effect of selected policies on lifetime marijuana use and treatment utilization.
| â |
Average years of marijuana use |
Prevalence (%) of marijuana use at age |
Prevalence (%) of heavy marijuana use at age |
Number of treatment episodes per 10,000 |
â | In the population cohort | Among ever-users | 18 | 19 | 20 | 18 | 19 | 20 | In the population cohort | Among those who were ever heavy user |
| Probability treatment is successful = 20% (base case) | 5.3 | 8.8 | 33.3 | 34.7 | 33.0 | 6.1 | 7.5 | 8.1 | 524 | 1640 | Probability treatment is successful = 35% | 5.3 | 8.8 | 33.0 | 34.3 | 33.0 | 5.9 | 7.4 | 8.1 | 503 | 1546 | Increase treatment access by 10% | 5.4 | 8.8 | 33.5 | 34.6 | 33.0 | 6.0 | 7.6 | 8.2 | 585 | 1830 | School-based drug prevention: decrease initiation by 10.9% | 5.2 | 8.6 | 32.3 | 33.2 | 32.0 | 5.4 | 7.1 | 7.9 | 473 | 1538 |
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