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Effectiveness of an offer of the Smoke Free smartphone application for smoking cessation: protocol for a randomized
Sarah E Jackson1, Olga Perski1, David Crane1
1Department of Behavioural Science and Health, University College London, UK.
Background And Aims:
Smartphone applications (apps) hold promise for delivering tobacco smoking cessation support to large numbers of people at low unit cost. Smoke Free is an evidence-informed, widely used app that is highly rated by users. This study aims to assess its effectiveness compared with no support.
Design:
Two-arm individually randomized controlled effectiveness trial.
Setting:
Online trial with no restrictions on location.
Participants:
English-speaking smokers aged ≥ 18 years willing to make a quit attempt within 4 weeks from initial contact (n = 4990).
Measurements:
The primary outcome measure is self-reported 26-week continuous smoking abstinence. Secondary outcome measures include quit attempts in the first 4 weeks post-randomization, 12-week continuous smoking abstinence and 26-week continuous smoking abstinence among those who made a quit attempt.
Comments:
If it is effective, the Smoke Free smartphone app is an affordable and widely implementable intervention to help smokers to quit.
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