App perceptions
| Users Mean score (SD) | |
|---|---|
| How useful is the alcohol tracker? | 1.67 (1.14) |
| How useful are the provided psychological therapies? | 1.57 (1.12) |
| How useful is the information on alcohol dependence? | 1.83 (1.21) |
| How useful is the notification service? | 1.74 (1.24) |
| How useful is the audit questionnaire? | 1.61 (1.22) |
| Overall, how useful is the app? | 1.78 (1.21) |
Usefulness rating scale: 4=extremely; 3=very; 2=moderately; 1=slightly; 0=not at all.