Table 2.
Prevalence of DSM‐IV marijuana abuse and dependence symptoms among past‐year marijuana users aged ≥ 18 years (N = 6917)
| DSM − IV criteria for marijuana abuse and dependence symptoms | All users | Marijuana dependence | Marijuana abuse | Marijuana use without a disorder | χ 2 (df) p‐Value |
|---|---|---|---|---|---|
| Sample size | n = 6917 | n = 853 | n = 419 | n = 5645 | |
| Proportion, column % (SE) | |||||
| A1: Role interference | 4.6 (0.40) | 32.1 (2.40) | 28.0 (3.77) | 0 | NS |
| A2: Hazardous use | 4.7 (0.35) | 21.5 (1.79) | 48.9 (4.36) | 0 | 197.7(1) <0.01 |
| A3: Problems with the law | 2.1 (0.25) | 11.8 (1.49) | 18.3 (3.33) | 0 | NS |
| A4: Relationship problems | 3.4 (0.28) | 23.0 (2.10) | 22.7 (2.84) | 0 | NS |
| D1: Tolerance | 19.7 (0.89) | 80.6 (2.88) | 34.1 (3.78) | 11.9 (0.71) | 224.9(2) <0.01 |
| D2: Taking larger amounts or longer | 5.4 (0.44) | 45.6 (3.17) | 1.5 (0.88) | 1.0 (0.20) | 149.1(2) <0.01 |
| D3: Inability to cut down | 5.3 (0.44) | 43.0 (2.53) | 3.7 (1.88) | 1.1 (0.25) | 170.5(2) <0.01 |
| D4: Time spent using | 30.2 (0.87) | 93.8 (1.61) | 59.9 (3.84) | 21.2 (0.90) | 399.2(2) <0.01 |
| D5: Giving up activities | 8.1 (0.51) | 61.2 (2.57) | 15.6 (3.16) | 1.7 (0.28) | 264.0(2) <0.01 |
| D6: Continued use despite resulting medical or psychological problems | 6.8 (0.45) | 54.1 (2.98) | 9.9 (2.32) | 1.3 (0.19) | 160.7(2) <0.01 |
Note: Sample sizes are unweighted; all other results are weighted figures. Df, degrees of freedom; SE, standard error; NS, not significant (p > 0.05).