Department of Health, Medicine and Caring Sciences, Linköping University, 581 83, Linköping, Sweden.
Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Stockholm, Sweden.
Sci Rep. 2022 Aug 13;12(1):13793. doi: 10.1038/s41598-022-17554-9.
Although user engagement is generally considered important for the effectiveness of digital behavior change interventions, there is a lack of such data in pregnancy. The aim of this study was therefore to examine the associations of user engagement with the HealthyMoms app with gestational weight gain, diet quality and physical activity in pregnancy. The study involved secondary analyses of participant data from the intervention group (n = 134) in a randomized controlled trial to determine the effectiveness of a 6-month mHealth intervention (the HealthyMoms app) on gestational weight gain, diet quality and physical activity. In adjusted regression models, the total number of registrations from three self-monitoring features (i.e., for weight-, diet- and physical activity) was associated with lower gestational weight gain (β = - 0.18, P = 0.043) and improved diet quality (β = 0.17, P = 0.019). These findings were mainly attributable to the associations of physical activity registrations with lower gestational weight gain (β = - 0.20, P = 0.026) and improved diet quality (β = 0.20, P = 0.006). However, the number of app sessions and page views were not associated with any of the outcomes. Our results may motivate efforts to increase user engagement in digital lifestyle interventions in pregnancy. However, additional studies are needed to further elucidate the influence of different types of user engagement in digital pregnancy interventions on their effectiveness.Trial registration: ClinicalTrials.gov (NCT03298555); https://clinicaltrials.gov/ct2/show/NCT03298555 (date of registration: October 2, 2017; date of first enrolled participant: October 24, 2017).
虽然用户参与度通常被认为对数字行为改变干预措施的有效性很重要，但在妊娠期间缺乏此类数据。因此，本研究旨在探讨与 HealthyMoms 应用程序的用户参与度与妊娠期间体重增加、饮食质量和身体活动的关联。该研究是对一项随机对照试验干预组（n=134）参与者数据的二次分析，以确定 6 个月的移动健康干预（HealthyMoms 应用程序）对妊娠体重增加、饮食质量和身体活动的有效性。在调整后的回归模型中，三个自我监测功能（即体重、饮食和身体活动）的注册总数与较低的妊娠体重增加（β= -0.18，P=0.043）和改善的饮食质量（β=0.17，P=0.019）相关。这些发现主要归因于身体活动注册与较低的妊娠体重增加（β= -0.20，P=0.026）和改善的饮食质量（β=0.20，P=0.006）的关联。然而，应用程序会话和页面浏览次数与任何结果均无关。我们的研究结果可能会激励人们努力增加妊娠期间数字生活方式干预措施的用户参与度。然而，需要进一步的研究来进一步阐明不同类型的用户参与数字妊娠干预措施对其有效性的影响。
ClinicalTrials.gov（NCT03298555）；https://clinicaltrials.gov/ct2/show/NCT03298555（注册日期：2017 年 10 月 2 日；首次入组参与者日期：2017 年 10 月 24 日）。
