Table 5:
Comparisons of Cannabis and Alcohol Use Variables According to Fixed-Price Cannabis Purchasing Category
| Fixed-price alcohol category |
One-way ANOVA results |
|||||
|---|---|---|---|---|---|---|
| Use variable | Substitute (n = 78) | Complement (n = 177) | Independent (n = 260) | F | p | |
|
| ||||||
| Cannabis alone demand intensity (log Q0) | 1.12 (0.05) | 1.38 (0.06)## | 1.16 (0.03) | 8.077 | <.001 | 0.031 |
| Cannabis alone demand elasticity (ln α) | −5.42 (0.13) | −6.16 (0.18)## | −5.26 (0.08) | 14.500 | <.001 | 0.054 |
| Cannabis concurrent demand intensity (log Q0) | 0.98 (0.05) | 1.13 (0.04) | 0.99 (0.03)** | 5.244 | .006 | 0.020 |
| Cannabis concurrent demand elasticity (ln α) | −5.50 (0.13) | −5.94 (0.12)# | −5.38 (0.07) | 9.825 | <.001 | 0.038 |
| Alcohol alone demand intensity (log Q0) | 0.79 (0.03) | 0.97 (0.05)# | 0.66 (0.02)& | 25.343 | <.001 | 0.091 |
| Alcohol alone demand elasticity (ln α) | −5.42 (0.13) | −6.16 (0.18)## | −5.26 (0.08) | 14.500 | <.001 | 0.054 |
| Alcohol concurrent demand intensity (log Q0) | 0.73 (0.03) | 0.90 (0.04)## | 0.57 (0.02)& | 33.13 | <.001 | 0.115 |
| Alcohol concurrent demand elasticity (ln α) | −5.15 (0.12) | −5.82 (0.12)## | −5.23 (0.06) | 14.410 | <.001 | 0.059 |
| CUDIT score | 9.78 (0.56) | 13.29 (0.57)## | 10.40 (0.35) | 13.809 | <.001 | 0.051 |
| AUDIT score | 11.83 (0.66) | 15.11 (0.73)## | 10.26 (0.35) | 23.170 | <.001 | 0.083 |
| Per-session cannabis quantity (g) | 0.39 (0.32) | 0.97 (0.15)## | 0.49 (0.04) | 9.714 | <.001 | 0.040 |
| Daily cannabis quantity (g) | 0.88 (.10) | 1.33 (0.12)# | 0.95 (0.06) | 6.041 | .003 | 0.025 |
| Monthly cannabis quantity (g) | 11.83 (1.57) | 15.03 (1.62) | 16.07 (1.49) | 1.091 | .337 | 0.005 |
| Per-session alcohol quantity (drinks) | 4.37 (0.34) | 4.67 (0.32) | 3.42 (0.13)** | 8.902 | <.001 | 0.033 |
| Past 30-day cannabis use frequency (days) | 13.05 (1.18) | 15.04 (0.74) | 17.37 (0.67)&& | 6.074 | .002 | 0.023 |
| Past 30-day alcohol use frequency (days) | 9.58 (0.99) | 10.40 (0.64) | 8.42 (0.50)* | 3.081 | .047 | 0.012 |
| Past 30-day couse frequency (days) | 3.57 (0.66) | 6.09 (0.58)## | 4.23 (0.40) | 5.332 | .005 | 0.020 |
| Couse frequency (percentage of episodes) | 35.37 (3.60) | 45.98 (2.52) | 37.01 (2.07)* | 4.681 | .010 | 0.018 |
| Past 30-day binge-drinking frequency (days) | 2.56 (0.44) | 2.82 (0.37) | 1.85 (0.28) | 2.589 | .076 | 0.010 |
Note. ANOVA analysis of variance; CUDIT Cannabis Use Disorder Identification Test; AUDIT Alcohol Use Disorder Identification Test. Results from one-way ANOVAs comparing cannabis and alcohol use patterns by fixed-price alcohol category. M (±SEM) values for each variable are presented for each category.
#
p < .05
##
p < .01 relative to all other groups
*
p < .05
**
p < .01 relative to complement group
&
p < .05
&&
p < .01 relative to substitute group in Tukey’s HSD test.