Table 3.
Acceptability ratings of the M3 app following 11 days of use. All items were on a 100-point Visual Analog Scale (0=Strongly Disagree, 100=Strongly Agree). Items are ordered by highest acceptability ratings to lowest. Note that for the final item, lower scores indicate greater acceptability.
| Acceptability Item | Mean | SD | Median | Min | Max |
|---|---|---|---|---|---|
| I received adequate training on how to use the breathalyzer and app. | 96.1 | 2.7 | 96.5 | 91 | 100 |
| I always read through the questions and answered accurately. | 87.5 | 21.2 | 95 | 16 | 99 |
| I would recommend this app and study to friends and family. | 79.8 | 19.6 | 92 | 48 | 100 |
| I felt that the CO breathalyzer was accurate. | 74.6 | 22 | 79.5 | 19 | 100 |
| The app was easy to use. | 73.8 | 23.2 | 82.5 | 27 | 99 |
| My schedule hindered me from being available during all session times. | 73.3 | 26.5 | 79 | 5 | 98 |
| I liked using the CO breathalyzer to monitor my progress. | 71.5 | 20.8 | 71 | 31 | 100 |
| I logged all cigarettes accurately. | 71.4 | 26.4 | 84.5 | 21 | 100 |
| The compensation for completing sessions was enough. | 71.1 | 27.5 | 75 | 5 | 99 |
| Monitoring my CO was helpful during my quit attempt. | 70.9 | 27.5 | 78.5 | 3 | 98 |
| The smoke-free bonuses were helpful during my quit attempt. | 69.5 | 27.9 | 72 | 11 | 99 |
| In the future, I would use this app for a longer period of time (i.e. one month) as part of a study or to help me quit. | 68.5 | 33.2 | 86.5 | 3 | 97 |
| I think using a CO breathalyzer to track my smoking would help me quit smoking. | 68.3 | 28 | 75 | 23 | 99 |
| The app made me feel like I was supported in my quit attempt. | 68 | 23.8 | 71 | 4 | 99 |
| I would use a CO breathalyzer to track my smoking, if I was trying to quit. | 66.8 | 27.2 | 67 | 20 | 99 |
| Using the app made me think more about smoking. | 66.2 | 26.6 | 70.5 | 12 | 100 |
| I liked using the CO breathalyzer. | 65.5 | 25.1 | 67 | 29 | 100 |
| I would definitely use this app in the future. | 64.8 | 33.7 | 79 | 3 | 100 |
| The CO breathalyzer was compact and easily portable. | 63.3 | 29 | 73.5 | 16 | 98 |
| The app improved my confidence in quitting smoking. | 58.9 | 25 | 60 | 4 | 99 |
| The app made me feel in control of my smoking. | 58.4 | 27.2 | 60 | 11 | 100 |
| The messages received through the app were helpful during my quit attempt. | 58.2 | 29.6 | 66.5 | 1 | 99 |
| I liked using the app. | 52.9 | 31.2 | 56.5 | 4 | 98 |
| It was easy to keep the phone and breathalyzer with me at all times. | 48.2 | 27.4 | 41 | 6 | 98 |
| The app was convenient to use. | 46.9 | 27.2 | 38.5 | 7 | 98 |
| The CO breathalyzer was difficult to use. (Lower scores indicate greater acceptability) | 15.5 | 17 | 11.5 | 0 | 64 |