Optimising the alcohol reduction app, Drink Less
PHE ePoster Library. Garnett C. 09/12/19; 274520; 78
Dr. Claire Garnett
Dr. Claire Garnett
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Abstract
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Abstract Background
Drink Less is an evidence-based app for reducing excessive drinking. Its development and initial evaluation followed the first two steps of the Multiphase Optimisation Strategy: i) identification of intervention components and ii) randomised factorial trial to evaluate the five individual components. The next step is to develop an optimised version of Drink Less.
Methods
The optimisation will be informed by three work packages. First, use of Bayes Factors to analyse additional data collected from extended recruitment of the randomised factorial trial. Secondly, an update of the 2017 Cochrane review on digital alcohol interventions and meta-regression of the intervention components associated with effectiveness. Thirdly, a content analysis of Drink Less user feedback received.
Results
The Bayes Factors analysis of the factorial trial indicated that the ‘Identity Change' intervention components should be removed in the optimised version of the app. The updated meta-regression of the Cochrane review indicated that ‘Behaviour substitution' and ‘Information about antecedents' should be added. The user feedback content analysis identified high priority changes within existing components, for example: customisable drink volumes; ability to update normative feedback; drinking calendar to start on Monday.
Conclusions
Using a mixed methods approach to optimise Drink Less has enabled us to improve its likely effectiveness and provide users with what they want from the intervention, crucial for engagement with any intervention. This optimised version will undergo user testing to improve its usability; the optimised version will then be evaluated in a definitive trial. External funding details Drink Less has been funded by the NIHR School for Public Health Research (SPHR), the UK Centre for Tobacco and Alcohol Studies (UKCTAS), the Society for the Study of Addiction (SSA) and CRUK. This optimisation project has been funded by the NIHR SPHR and SSA.The views expressed are those of the authors and not necessarily those of the NIHR or the Department of Health and Social Care. The research team is part of the UKCTAS, a UKCRC Public Health Research Centre of Excellence. Funding from the Medical Research Council, British Heart Foundation, Cancer Research UK, Economic and Social Research Council and the NIHR under the auspices of the UK Clinical Research Collaboration, is gratefully acknowledged.
Abstract Background
Drink Less is an evidence-based app for reducing excessive drinking. Its development and initial evaluation followed the first two steps of the Multiphase Optimisation Strategy: i) identification of intervention components and ii) randomised factorial trial to evaluate the five individual components. The next step is to develop an optimised version of Drink Less.
Methods
The optimisation will be informed by three work packages. First, use of Bayes Factors to analyse additional data collected from extended recruitment of the randomised factorial trial. Secondly, an update of the 2017 Cochrane review on digital alcohol interventions and meta-regression of the intervention components associated with effectiveness. Thirdly, a content analysis of Drink Less user feedback received.
Results
The Bayes Factors analysis of the factorial trial indicated that the ‘Identity Change' intervention components should be removed in the optimised version of the app. The updated meta-regression of the Cochrane review indicated that ‘Behaviour substitution' and ‘Information about antecedents' should be added. The user feedback content analysis identified high priority changes within existing components, for example: customisable drink volumes; ability to update normative feedback; drinking calendar to start on Monday.
Conclusions
Using a mixed methods approach to optimise Drink Less has enabled us to improve its likely effectiveness and provide users with what they want from the intervention, crucial for engagement with any intervention. This optimised version will undergo user testing to improve its usability; the optimised version will then be evaluated in a definitive trial. External funding details Drink Less has been funded by the NIHR School for Public Health Research (SPHR), the UK Centre for Tobacco and Alcohol Studies (UKCTAS), the Society for the Study of Addiction (SSA) and CRUK. This optimisation project has been funded by the NIHR SPHR and SSA.The views expressed are those of the authors and not necessarily those of the NIHR or the Department of Health and Social Care. The research team is part of the UKCTAS, a UKCRC Public Health Research Centre of Excellence. Funding from the Medical Research Council, British Heart Foundation, Cancer Research UK, Economic and Social Research Council and the NIHR under the auspices of the UK Clinical Research Collaboration, is gratefully acknowledged.
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