Table 2.
Intention-to-treat analyses
| Group and measure | Baseline mean (SD) |
Posttreatment mean (SD) |
Follow-up mean (SD) |
Baseline to posttreatment Cohen's d (within-group) |
Baseline to follow-up Cohen's d (within-group) |
| Win Back Control | |||||
| Gambling days last 30 days | 15.92 (8.58) | 6.92 (6.74) | 5.24 (8.43) | 1.17 | 1.26 |
| Money spent last 30 days | 3,680.96 (7,789.91) | 596.74 (713.08) | 358.80 (855.09) | 0.56 | 0.60 |
| Gambling time last 7 days | 679.89 (667.23) | 192.53 (244.49) | 129.34 (301.35) | 0.97 | 1.06 |
| Cigarettes smoked last 7 days | 84.05 (111.79) | 81.92 (89.72) | 45.46 (64.60) | 0.02 | 0.42 |
| Drinking days last 7 days | 4.24 (7.44) | 5.38 (10.87) | 5.17 (12.26) | −0.12 | −0.09 |
| PHQ-9 | 8.73 (4.40) | N/A | 3.42 (3.37) | N/A | 1.36 |
| GAD-7 | 9.81 (5.03) | N/A | 3.52 (3.22) | N/A | 1.49 |
| ASRS-v1.1 | 9.19 (5.28) | N/A | 6.91(4.40) | N/A | 0.47 |
| PTSD-7 | 9.38 (5.90) | N/A | 6.66 (3.37) | N/A | 0.57 |
| PGSI | 16.52 (4.96) | 5.21 (3.96) | 4.95 (4.98) | 2.52 | 2.33 |
| G-SAS | 32.21 (7.95) | 22.51 (10.03) | 16.60 (11.21) | 1.07 | 1.61 |
| AUDIT | 5.35 (6.37) | N/A | 4.29 (6.22) | N/A | 0.17 |
| DAST-10 | 1.17 (1.72) | N/A | 0.68 (1.15) | N/A | 0.34 |
| CSQ-I | N/A | 25.80 (5.99) | N/A | N/A | N/A |
| Self-help manual | |||||
| Gambling days last 30 days | 16.68 (8.24) | 7.97(8.48) | 8.04 (9.04) | 1.04 | 1.00 |
| Money spent in last 30 days | 4,156.40 (7,651.70) | 1,402.12 (4,072.38) | 1,570.81 (3,424.09) | 0.45 | 0.44 |
| Gambling time last 7 days | 701.29 (667.74) | 337.09 (534.00) | 322.42 (618.29) | 0.60 | 0.59 |
| Cigarettes smoked last 7 days | 87.32 (86.33) | 71.01 (60.05) | 89.43 (84.86) | 0.22 | 0.03 |
| Drinking days last 7 days | 5.29 (8.74) | 4.48 (6.92) | 4.49 (6.81) | 0.10 | 0.10 |
| PHQ-9 | 9.01 (4.75) | N/A | 6.08 (3.88) | N/A | 0.67 |
| GAD-7 | 10.06 (4.80) | N/A | 7.51 (5.02) | N/A | 0.52 |
| ASRS-v1.1 | 9.23 (4.99) | N/A | 7.96 (4.01) | N/A | 0.28 |
| PTSD-7 | 8.89 (5.9) | N/A | 8.93 (3.35) | N/A | 0.01 |
| PGSI | 16.97 (4.68) | 7.08 (5.59) | 6.99 (5.53) | 1.92 | 1.95 |
| G-SAS | 32.50 (7.24) | 22.43 (12.83) | 21.42 (12.95) | 0.97 | 1.06 |
| AUDIT | 5.52 (5.99) | N/A | 6.48 (7.10) | N/A | −0.15 |
| DAST-10 | 1.25 (1.68) | N/A | 1.43 (2.15) | N/A | −0.01 |
| CSQ-I | N/A | 20.64 (7.07) | N/A | N/A | N/A |
ASRS-v1.1, Adult ADHD Self-Report Scale; AUDIT, Alcohol Use Disorders Identification Test; CSQ-I, Client Satisfaction Questionnaire; DAST-10, Drug Abuse Screening Test; GAD-7, General Anxiety Disorder; G-SAS, Gambling Symptom Assessment Scale; PGSI, Problem Gambling Severity Index; PHQ-9, Patient Health Questionnaire; PTSD-7, Posttraumatic Stress Disorder.