Published on in Vol 6, No 12 (2018): December
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11175, first published
.
![Predictors of Engagement, Response to Follow Up, and Extent of Alcohol Reduction in Users of a Smartphone App (Drink Less): Secondary Analysis of a Factorial Randomized Controlled Trial Predictors of Engagement, Response to Follow Up, and Extent of Alcohol Reduction in Users of a Smartphone App (Drink Less): Secondary Analysis of a Factorial Randomized Controlled Trial](https://asset.jmir.pub/assets/b3981b8ec0ef822058ba465f4955fb52.png 480w,https://asset.jmir.pub/assets/b3981b8ec0ef822058ba465f4955fb52.png 960w,https://asset.jmir.pub/assets/b3981b8ec0ef822058ba465f4955fb52.png 1920w,https://asset.jmir.pub/assets/b3981b8ec0ef822058ba465f4955fb52.png 2500w)
1 Department of Behavioural Science and Health, University College London, London, United Kingdom
2 Department of Clinical, Education and Health Psychology, University College London, London, United Kingdom