Characteristics of cannabis use among young adults from the 2017 and 2018 Behavioral Risk Factor Surveillance System surveys
| Characteristic | No. of cannabis users n = 4610 | Weighted proportion of cannabis users (95% CI)* |
|---|---|---|
| Frequency of use† | ||
| Less frequent | 1457 | 29.5 (27.3–31.7) |
| More frequent | 3153 | 70.5 (68.3–72.7) |
| Primary method of consumption | ||
| Smoke | 3640 | 76.3 (74.3–78.4) |
| Vapourize | 431 | 11.3 (9.8–12.8) |
| Other | 539 | 12.4 (10.8–13.9) |
Note: CI = confidence interval.
↵* Weighted proportions and 95% confidence intervals were calculated in consideration of the complex sampling design of the Behavioral Risk Factor Surveillance System survey
↵† We defined less frequent use as consumption of cannabis ≤ 4 times per month (≤ 1 time per week), and more frequent use as consumption of cannabis > 4 times per month (> 1 time per week).