Multiple lifestyle behaviour mHealth intervention targeting Swedish college and university students: protocol for the Buddy randomised factorial trial

Introduction The time during which many attend college or university is an important period for developing health behaviours, with potentially major implications for future health. Therefore, it is concerning that many Swedish students excessively consume alcohol, have unhealthy diets, are not physi...

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Main Authors: Hanna Henriksson, Pontus Henriksson, Marie Löf, Preben Bendtsen, Marcus Bendtsen, Katarina Åsberg, Oskar Lundgren
Format: Article
Language:English
Published: BMJ Publishing Group 2021-12-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/11/12/e051044.full
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author Hanna Henriksson
Pontus Henriksson
Marie Löf
Preben Bendtsen
Marcus Bendtsen
Katarina Åsberg
Oskar Lundgren
author_facet Hanna Henriksson
Pontus Henriksson
Marie Löf
Preben Bendtsen
Marcus Bendtsen
Katarina Åsberg
Oskar Lundgren
author_sort Hanna Henriksson
collection DOAJ
description Introduction The time during which many attend college or university is an important period for developing health behaviours, with potentially major implications for future health. Therefore, it is concerning that many Swedish students excessively consume alcohol, have unhealthy diets, are not physical active and smoke. The potential of digital interventions which integrate support for change of all of these behaviours is largely unexplored, as are the dismantled effects of the individual components that make up digital lifestyle behaviour interventions.Methods and analysis A factorial randomised trial (six factors with two levels each) will be employed to estimate the effects of the components of a novel mHealth multiple lifestyle intervention on alcohol consumption, diet, physical activity and smoking among Swedish college and university students. A Bayesian group sequential design will be employed to periodically make decisions to continue or stop recruitment, with simulations suggesting that between 1500 and 2500 participants will be required. Multilevel regression models will be used to analyse behavioural outcomes collected at 2 and 4 months postrandomisation.Ethics and dissemination The study was approved by the Swedish Ethical Review Authority on 2020-12-15 (Dnr 2020-05496). The main concern is the opportunity cost if the intervention is found to only have small effects. However, considering the lack of a generally available evidence-based multiple lifestyle behaviour support to university and college students, this risk was deemed acceptable given the potential benefits from the study.Recruitment will begin in March 2021, and it is expected that recruitment will last no more than 24 months. A final data set will, therefore, be available in July 2023, and findings will be reported no later than December 2023.Trial registration number ISRCTN23310640; Pre-results.
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spelling doaj-art-2ae803dd3fa84e4db393ae943d3c02d02024-12-10T03:50:13ZengBMJ Publishing GroupBMJ Open2044-60552021-12-01111210.1136/bmjopen-2021-051044Multiple lifestyle behaviour mHealth intervention targeting Swedish college and university students: protocol for the Buddy randomised factorial trialHanna Henriksson0Pontus Henriksson1Marie Löf2Preben Bendtsen3Marcus Bendtsen4Katarina Åsberg5Oskar Lundgren61 Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, SwedenDepartment of Health, Medicine and Caring Sciences, Linköping University, Linköping, SwedenDepartment of Biosciences and Nutrition, Karolinska Institutet, Stockholm, SwedenDepartment of Health, Medicine and Caring Sciences, Linköping University, Linköping, SwedenDepartment of Health, Medicine and Caring Sciences, Linköping University, Linköping, SwedenDepartment of Health, Medicine and Caring Sciences, Linköping University, Linköping, SwedenDepartment of Health, Medicine and Caring Sciences, Linköping University, Linköping, SwedenIntroduction The time during which many attend college or university is an important period for developing health behaviours, with potentially major implications for future health. Therefore, it is concerning that many Swedish students excessively consume alcohol, have unhealthy diets, are not physical active and smoke. The potential of digital interventions which integrate support for change of all of these behaviours is largely unexplored, as are the dismantled effects of the individual components that make up digital lifestyle behaviour interventions.Methods and analysis A factorial randomised trial (six factors with two levels each) will be employed to estimate the effects of the components of a novel mHealth multiple lifestyle intervention on alcohol consumption, diet, physical activity and smoking among Swedish college and university students. A Bayesian group sequential design will be employed to periodically make decisions to continue or stop recruitment, with simulations suggesting that between 1500 and 2500 participants will be required. Multilevel regression models will be used to analyse behavioural outcomes collected at 2 and 4 months postrandomisation.Ethics and dissemination The study was approved by the Swedish Ethical Review Authority on 2020-12-15 (Dnr 2020-05496). The main concern is the opportunity cost if the intervention is found to only have small effects. However, considering the lack of a generally available evidence-based multiple lifestyle behaviour support to university and college students, this risk was deemed acceptable given the potential benefits from the study.Recruitment will begin in March 2021, and it is expected that recruitment will last no more than 24 months. A final data set will, therefore, be available in July 2023, and findings will be reported no later than December 2023.Trial registration number ISRCTN23310640; Pre-results.https://bmjopen.bmj.com/content/11/12/e051044.full
spellingShingle Hanna Henriksson
Pontus Henriksson
Marie Löf
Preben Bendtsen
Marcus Bendtsen
Katarina Åsberg
Oskar Lundgren
Multiple lifestyle behaviour mHealth intervention targeting Swedish college and university students: protocol for the Buddy randomised factorial trial
BMJ Open
title Multiple lifestyle behaviour mHealth intervention targeting Swedish college and university students: protocol for the Buddy randomised factorial trial
title_full Multiple lifestyle behaviour mHealth intervention targeting Swedish college and university students: protocol for the Buddy randomised factorial trial
title_fullStr Multiple lifestyle behaviour mHealth intervention targeting Swedish college and university students: protocol for the Buddy randomised factorial trial
title_full_unstemmed Multiple lifestyle behaviour mHealth intervention targeting Swedish college and university students: protocol for the Buddy randomised factorial trial
title_short Multiple lifestyle behaviour mHealth intervention targeting Swedish college and university students: protocol for the Buddy randomised factorial trial
title_sort multiple lifestyle behaviour mhealth intervention targeting swedish college and university students protocol for the buddy randomised factorial trial
url https://bmjopen.bmj.com/content/11/12/e051044.full
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