Table 4. Mental health and substance use at baseline and each follow up time point for the e-cigarette (EC) and usual care (UC) arms.
| Total | EC Arm | UC Arm | |
|---|---|---|---|
| GAD-7 | |||
| N | 37 | 27 | 10 |
| Baseline: Mean (SD) | 10.08 (6.91) | 8.48 (6.81) | 14.40 (5.36) |
| 4 weeks: Mean (SD) | 9.11 (6.81) | 7.15 6.38) | 14.40 (5.02) |
| 12 weeks: Mean (SD) | 8.27 (7.12) | 6.44 (6.54) | 13.20 (6.49) |
| 24 weeks: Mean (SD) | 7.54 (6.64) | 5.63 (6.34) | 12.70 (4.42) |
| PHQ-9 | |||
| N | 36 | 25 | 11 |
| Baseline: Mean (SD) | 11.53 (8.26) | 10.76 (8.34) | 13.27 (8.17) |
| 4 weeks: Mean (SD) | 10.53 (7.62) | 9.08 (7.76) | 13.82 (6.46) |
| 12 weeks: Mean (SD) | 9.92 (8.03) | 8.36 (7.53) | 13.45 (8.37) |
| 24 weeks: Mean (SD) | 8.25 (7.38) | 7.12 (7.22) | 10.82 (7.23) |
| AUDIT | |||
| N | 35 | 24 | 11 |
| Baseline: Mean (SD) | 10.60 (11.07) | 11.83 (12.15) | 7.91 (8.08) |
| 4 weeks: Mean (SD) | 7.86 (9.34) | 9.08 (9.76) | 5.18 (8.48) |
| 12 weeks: Mean (SD) | 8.57 (9.72) | 10.29 (10.37) | 4.82 (7.15) |
| 24 weeks: Mean (SD) | 8.00 (8.47) | 8.92 (8.83) | 6.00 (7.64) |
| SDS | |||
| N | 37 | 27 | 10 |
| Baseline: Mean (SD) | 3.81 (5.05) | 3.15 (4.33) | 5.50 (6.52) |
| 4 weeks: Mean (SD) | 3.19 (4.48) | 2.81 (4.51) | 4.20 (4.49) |
| 12 weeks: Mean (SD) | 3.78 (4.15) | 3.35 (4.05) | 4.90 (4.41) |
| 24 weeks: Mean (SD) | 3.78 (4.33) | 3.23 (4.46) | 5.20 (3.82) |
GAD-7 = Generalised Anxiety Disorder Questionnaire: PHQ-9 = Patient Health Questionnaire; AUDIT = Alcohol Use Disorders Identification Test; SDS = Severity of Dependence Scale