Table 2.
Prevalence of Specific Alcohol Use Disorder (AUD) Criteria and Item Response Theory (IRT) Parameter Estimates
| Prevalence | Discrimination | Severity | |||||
|---|---|---|---|---|---|---|---|
| Alcohol Symptom Checklist item | n | (%) | a | (95% CI) | b | (95% CI) | |
| 1) | Tolerance | 3301 | (28.8) | 1.55 | (1.47, 1.63) | 0.83 | (0.79, 0.87) |
| 2) | Withdrawal | 1973 | (17.2) | 2.53 | (2.40, 2.67) | 1.15 | (1.10, 1.20) |
| 3) | Larger/longer | 4355 | (38.0) | 2.19 | (2.09, 2.30) | 0.39 | (0.36, 0.42) |
| 4) | Quit/control | 3349 | (29.2) | 2.44 | (2.32, 2.56) | 0.67 | (0.63, 0.71) |
| 5) | Time spent | 2662 | (23.2) | 2.79 | (2.65, 2.94) | 0.86 | (0.82, 0.90) |
| 6) | Physical/psychological problems | 5144 | (44.9) | 2.24 | (2.13, 2.35) | 0.16 | (0.14, 0.19) |
| 7) | Neglect roles | 1938 | (16.9) | 3.45 | (3.24, 3.66) | 1.07 | (1.01, 1.13) |
| 8) | Hazardous use | 1854 | (16.2) | 1.49 | (1.41, 1.57) | 1.51 | (1.45, 1.56) |
| 9) | Social/interpersonal problems | 3469 | (30.3) | 2.83 | (2.68, 2.97) | 0.61 | (0.57, 0.64) |
| 10) | Craving | 3772 | (32.9) | 2.53 | (2.40,2.65) | 0.54 | (0.50, 0.57) |
| 11) | Activities given up | 2353 | (20.5) | 3.24 | (3.06, 3.42) | 0.93 | (0.89, 0.98) |