Mean of drug use patterns of testers and nontesters
| Psychoactive substances | Testers (N = 342) | Nontesters (N = 110) | |||
|---|---|---|---|---|---|
| Mean | SD | Mean | SD | t-test result | |
| Tobacco products | 5 | 2.61 | 5 | 2.29 | t(378) = 0.062, p = 0.95, d = 0 |
| Alcoholic beverages | 5.5 | 1.25 | 5.4 | 1.37 | t(422) = 0.320, p = 0.749, d = 0.07 |
| Cannabis | 5.2 | 1.80 | 5.2 | 1.18 | t(422) = −0.119, p = 0.906, d = 0 |
| Cocaine | 1.8 | 1.73 | 2.4 | 2 | t(421) = −2.348, p = 0.019, d = 0.32 |
| MDMA | 3.1 | 1.23 | 3.1 | 1.48 | t(422) = 0.001, p = 0.999, d = 0 |
| Amphetamine | 1.7 | 1.75 | 2.2 | 2.16 | t(422) = −2.226, p = 0.027, d = 0.25 |
| Benzodiazepines | 0.79 | 1.44 | 1.2 | 1.65 | t(422) = −2.350, p = 0.019, d = 0.26 |
| Opioids | 0.32 | 0.78 | 0.76 | 1.29 | t(416) = −3.900, p = <0.001, d = 0.41 |
| LSD | 2.5 | 1.40 | 2.1 | 1.40 | t(417) = 2.136, p = 0.033, d = 0.28 |
| Magic mushrooms | 2.1 | 1.42 | 2.1 | 1.53 | t(418) = −0.251, p = 0.802, d = 0.0 |
| Ketamine | 1.3 | 1.72 | 1.8 | 2.04 | t(419) = −1.857, p = 0.064, d = 0.26 |
| Psychoactive substances | Testers ( | Nontesters ( | |||
|---|---|---|---|---|---|
| Mean | SD | Mean | SD | ||
| Tobacco products | 5 | 2.61 | 5 | 2.29 | |
| Alcoholic beverages | 5.5 | 1.25 | 5.4 | 1.37 | |
| Cannabis | 5.2 | 1.80 | 5.2 | 1.18 | |
| Cocaine | |||||
| MDMA | 3.1 | 1.23 | 3.1 | 1.48 | |
| Amphetamine | |||||
| Benzodiazepines | |||||
| Opioids | |||||
| LSD | |||||
| Magic mushrooms | 2.1 | 1.42 | 2.1 | 1.53 | |
| Ketamine | 1.3 | 1.72 | 1.8 | 2.04 | |
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