Table 5.
Prevalence and trends in co-use, drinking, and alcohol-related harms by cannabis use group
| NON-CANNABIS USERS (n = 4,292) | CANNABIS USERS (n = 1,200) | |||||||
|---|---|---|---|---|---|---|---|---|
| 2014 | 2015 | 2016 | Trend P* | 2014 | 2015 | 2016 | Trend P | |
| Cannabis user/non-drinker (%) | -- | -- | -- | -- | 15.0 | 15.0 | 16.8 | (ref) |
| Concurrent cannabis/alcohol user (%) | -- | -- | -- | -- | 35.8 | 34.9 | 33.5 | ns |
| Simultaneous cannabis/alcohol user (%) | -- | -- | -- | -- | 49.2 | 50.1 | 49.7 | ns |
| Current drinker (%) | 63.2 | 65.9 | 63.4 | ns | 85.2 | 85.1 | 83.3 | ns |
| Average # drinking days, past 30 days | 8.5 (0.4) | 8.4 (0.4) | 8.3 (0.5) | ns | 8.9 (0.7) | 9.4 (0.8) | 9.1 (0.7) | ns |
| Average # drinks/drinking day, past 30 days | 1.9 (0.1) | 1.8 (0.1) | 1.8 (0.1) | 0.035 | 2.7 (0.2) | 2.7 (0.2) | 2.5 (0.2) | ns |
| Average volume, past 30 days | 18.9 (2.7) | 17.0 (1.5) | 16.0 (1.3) | ns | 27.7 (3.7) | 28.7 (6.5) | 27.1 (3.5) | ns |
| Frequency 5+, past 30 days | 0.6 (0.2) | 0.6 (0.1) | 0.5 (0.1) | ns | 1.5 (0.2) | 1.1 (0.2) | 1.3 (0.2) | ns |
| Alcohol-related harms at home, past 12 months (%) | 1.3 | 1.2 | 0.6 | ns | 4.3 | 6.7 | 1.8 | 0.053 |
| Health harms (%) | 2.3 | 3.0 | 2.9 | ns | 6.5 | 12.1 | 8.7 | ns |
| Work harms (%) | 0.4 | 0.4 | 0.4 | ns | 1.4 | 4.0 | 0.9 | ns |
| Financial harms (%) | 0.7 | 0.8 | 0.6 | ns | 3.7 | 5.4 | 1.2 | 0.007 |
*
From multivariable regression models adjusting for gender, age, race/ethnicity, education, employment, and marital status