| Participant | Confidence, % | Drug type | Frequency of use |
| 1 | 45 | H | Mild |
| 2 | 50 | H | Mild |
| 3 | 3 | H | Moderate |
| 4 | −15 | H | Moderate |
| 5 | 24 | H | Heavy |
| 6 | 46 | H, S | Heavy |
| 7 | 0 | H | Moderate |
| 8 | 41 | H, S | Moderate |
| 9 | 33 | H | Moderate |
| 10 | 1 | H, S | Heavy |
| 11 | 49 | H | Heavy |
| 12 | 32 | H | Heavy |
| 13 | 45 | H | Heavy |
| 14 | 18 | H, S | Moderate |
| 15 | 66 | H, S, D | Heavy |
| 16 | 29 | H | Heavy |
| 17 | 47 | S, D | Moderate |
| 18 | 14 | H, S, D | Moderate |
| 19 | 80 |
| Moderate |
| 20 | 55 | H, S, D | Moderate |
| 21 | 54 | H, D | Moderate |
| 22 | 50 | H, S | Moderate |
| 23 | 44 | H, D | Moderate |
| 24 | 24 |
|
|
| 25 | 36 | H | Mild |
| 26 | 30 | D | Mild |
| 27 | 28 |
|
|
| 28 | 9 |
|
|
| 29 | 23 |
|
|
| 30 | 41 | H, S | Mild |
| 31 | 26 | D | Moderate |
| 32 | 38 | H | Mild |
| 33 | 33 |
|
|
| 34 | 47 |
|
|
| 35 | 31 |
|
|
| 36 | 26 | D | Mild |
| 37 | 33 | D | Mild |
| 38 | 31 |
|
|
| 39 | 30 |
|
|