Table 2.
Central tendency, variability, significance, and effect size (d or A) for all variables compared between cannabis Users and Non-Users. Data are mean ± SD or median (range). Significant p-values are in bold.
| Variable Name | Users | Non-Users | p-Value | Effect Size |
|---|---|---|---|---|
| ABC-1 (%) * | 83.3 ± 15.4 | 85.6 ± 14.5 | 0.76 | d = 0.2 |
| BBS-14 (score) * | 2 (1–4) | 4 (3–4) | 0.008 | A = 0.89 |
| Simple RT (ms) * | 629.4 ± 38.7 | 668.1 ± 65.0 | 0.17 | d = 0.7 |
| Choice RT (ms) | 628.3 ± 204.4 | 623.9 ± 88.4 | 0.96 | d = 0.0 |
| Likelihood of Falling (%) | 61.5 (1.1–96.8) | 0.5 ± (0.05–13.6) | 0.005 | A =0.91 |
| Flanker-Compatible (ms) | 959.3 ± 189.3 | 963.0 ± 63.8 | 0.96 | d = 0.0 |
| Flanker-Incompatible (ms) | 1100.6 ± 224.5 | 1031.1 ± 59.0 | 0.44 | d = 0.4 |
| Flanker Effect (ms) | 140 (41–333) | 72 (2–112) | 0.07 | A = 0.71 |
| 9-HPT, D (s) | 24.4 ± 4.5 | 22.0 ± 4.0 | 0.30 | d = 0.6 |
| 9-HPT, ND (s) | 26.4 ± 4.1 | 23.2 ± 3.7 | 0.13 | d = 0.8 |
| Gait Velocity (m/s) | 0.96 ± 0.30 | 1.26 ± 0.17 | 0.03 | d = 1.2 |
| Stride Length (m) | 1.1 ± 0.2 | 1.3 ± 0.2 | 0.06 | d = 1.01 |
| AP-Pathlength (cm) | 2.5 ± 0.8 | 2.2 ± 0.6 | 0.47 | d = 0.4 |
| ML-Pathlength (cm) | 1.1 ± 0.4 | 0.9 ± 0.3 | 0.28 | d = 0.6 |
| COParea (cm2) | 1.6 (0.9–3.8) | 1.1 (0.4–6.6) | 0.38 | A = 0.36 |
ABC-1 = Activities Balance Confidence scale, question 1; BBS-14 = Berg Balance Scale, Item 14; RT = reaction time; 9-HPT = 9-Hole Peg Test; D = dominant hand; ND = non-dominant hand; AP = anterior–posterior; ML = medio–lateral; COParea = area of an ellipse that encapsulates 95% of the 2D center of the pressure trace. Variables marked with an asterisk (*) were used in the Likelihood of Falling calculation [28].