Table 2 Group differences in substance use and coping
|  | Total (n = 106) | NoTEs (n = 31) | TEs (n = 42) | PTSD (n = 33) | Group comparisons | ||
|---|---|---|---|---|---|---|---|
| Â | Â | Â | Â | Test statistic (SE) | p-value | Effect size | |
Mean coping score (SD) | 5.4 (5.6) | 3.2 (4.0) | 5.1 (5.3) | 7.6 (5.6) | F (103) = 5.77 | 0.004a | η2 = .101 |
Number of participants having used the substance in the past year | |||||||
 Tobacco (n = 14 missings) | 89 (83%) | 25 (80%) | 36 (86%) | 29 (88%) | b =—0.19 (0.38) | 0.721 | OR = 0.83 |
 Alcohol (n = 13 missings) | 75 (81%) | 20 (69%) | 32 (89%) | 23 (82%) | b = 0.40 (0.38) | 0.289 | OR = 1.49 |
 Cannabis (n = 12 missings) | 82 (87%) | 26 (90%) | 32 (86%) | 24 (86%) | b = -0.38 (0.45) | 0.392 | OR = 0.68 |
 MDMA (n = 12 missings) | 41 (44%) | 07 (23%) | 18 (49%) | 16 (59%) | b = 0.66 (0.31) | 0.034a | OR = 1.94 |
 Stimulants (n = 11 missings) | 32 (34%) | 05 (17%) | 17 (44%) | 10 (37%) | b = 0.42 (0.32) | 0.196 | OR = 1.52 |
Number of days of substance use per month over the past year (SD) | |||||||
 Tobacco (n = 14 missings) | 25.0 (10.1) | 23.0 (11.7) | 26.2 (8.4) | 25.3 (10.1) | H (2) = 1.6 | 0.457 | η2 = .004 |
 Alcohol (n = 11 missings) | 7.6 (10.1) | 6.0 (9.3) | 7.4 (10.6) | 9.6 (10.4) | H (2) = 2.8 | 0.256 | η2 = .008 |
 Cannabis (n = 10 missings) | 15.7 (12.1) | 17.1 (12.9) | 17.7 (11.8) | 12.4 (11.5) | H (2) = 4.9 | 0.085 | η2 = .033 |
 MDMA (n = 9 missings) | 2.3 (5.2) | 0.9 (2.5) | 1.6 (2.5) | 4.4 (8.1) | H (2) = 7.2 | 0.027a | η2 = .058 |
 Stimulants (n = 28 missings) | 3.7 (8.0) | 4.6 (9.0) | 2.3 (6.1) | 4.3 (9.0) | H (2) = 1.3 | 0.512 | η2 = .009 |