Table 1.
Demographic and impulsivity characteristics of participants (M ± SD).
| BQD | NCs | Statistics | |
|---|---|---|---|
| N | 48 | 22 | - |
| Age (years) | 34.85 ± 8.10 | 32.05 ± 6.25 | t(68) = 1.44, p = 0.150 |
| Education (years) | 11.62 ± 2.83 | 17.82 ± 2.82 | t(68) = −6.19, p < 0.001* |
| BMI (kg/m2) | 25.07 ± 3.74 | 23.32 ± 3.84 | t(68) = 1.81, p = 0.080 |
| BQDS | 59.63 ± 14.55 | - | - |
| Duration of BQ use (years) | 15.23 ± 7.10 | - | - |
| Age of first BQ use | 17.13 ± 6.67 | - | - |
| Estimated BQ use per day (g) | 40.19 ± 33.11 | - | - |
| BIS_Motor | 25.52 ± 5.86 | 20.59 ± 4.29 | t(68) = 3.53, p = 0.001* |
| BIS_Attention | 36.83 ± 4.13 | 37.73 ± 4.31 | t(68) = −0.83, p = 0.410 |
| BIS_No Plan | 39.27 ± 4.72 | 36.73 ± 3.55 | t(68) = 3.06, p = 0.003* |
| Cue_CR | 0.99 ± 0.03 | 0.97 ± 0.05 | t(68) = 1.77, p = 0.160 |
| Cue_RT (ms) | 609.5 ± 138.1 | 618.8 ± 144.3 | t(68) = −0.25, p = 0.800 |
*Significant at p < 0.05.