Table 2.
Cross-tabulation of Trajectory Group Designations for Alcohol Dependence and QFI Free Curve Models.
| QFI Free Curve Class | AD Class
|
||||
|---|---|---|---|---|---|
| Severe Chronic | Severe Non-Chronic | Young Adult | Late Onset | Total | |
| 1 | 43 78.2% |
9 11.8% |
65 34.9% |
36 35.0% |
153 36.4% |
| 2 | 5 9.1% |
40 52.6% |
7 3.8% |
37 35.9% |
89 21.2% |
| 3 | 2 3.6% |
6 7.9% |
82 44.1% |
1 1.0% |
91 21.7% |
| 4 | 5 9.1% |
21 27.6% |
32 17.2% |
29 28.2% |
87 21.2% |
| Total | 55 100% |
76 100% |
186 100% |
103 100% |
420 100% |
Notes. AD = Alcohol Dependence; QFI = Quantity-Frequency Index. Counts and percentages refer to distribution of QFI Free Curve classes within each AD class.