Table 3. Summary of lifetime use of cannabis and stimulants in the ecstasy (E), amphetamine (A), and cannabis (C) groups.
| Stimulants | ||||
| Subject | Cannabis | Ecstasy | Amphetamine | Total |
| E1 | 1529 | 153 | 3 | 156 |
| E2 | 4380 | 52 | 5 | 57 |
| E3 | 1456 | 20 | 2 | 22 |
| E4 | 15 | 18 | 1 | 19 |
| E5 | 2763 | 13 | 4 | 17 |
| E6 | 72 | 9 | 3 | 12 |
| E7 | 183 | 6 | 1 | 7 |
| E8 | 60 | 5 | 1 | 6 |
| E9 | 450 | 5 | 1 | 6 |
| E mean (SD) | 1212 (1512) | 31 (48) | 2 (2) | 34 (49) |
| A1 | 13 | 1 | 832 | 833 |
| A2 | 7365 | 3 | 244 | 247 |
| A3 | 6570 | 1 | 208 | 209 |
| A4 | 360 | 4 | 231 | 235 |
| A5 | 212 | 5 | 92 | 97 |
| A6 | 270 | 1 | 26 | 27 |
| A7 | 4384 | 0 | 7 | 7 |
| A mean (SD) | 2739 (3275) | 2 (2) | 234 (281) | 236 (281) |
| C1 | 8395 | |||
| C2 | 1248 | |||
| C3 | 364 | |||
| C4 | 154 | |||
| C5 | 130 | |||
| C6 | 104 | |||
| C7 | 92 | |||
| C8 | 80 | |||
| C9 | 64 | |||
| C10 | 39 | |||
| C11 | 9 | |||
| C12 | 6 | |||
| C mean (SD) | 890 (2388) | |||
Single subject data are presented (number of times used) and the mean±standard deviation for each group. The term ‘amphetamine’ describes amphetamine and amphetamine-like drugs such methamphetamine, cocaine, dexamphetamine, and methylphenidate. The term ‘ecstasy’ describes ecstasy and MDA (3,4-methylenedioxyamphetamine, 2 subjects).