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The effectiveness of a monetary reimbursement model for weight reduction via a smartphone application: a preliminary retrospective study
Scientific Reports ( IF 4.6 ) Pub Date : 2020-09-24 , DOI: 10.1038/s41598-020-72908-5
Jungeun Lee 1, 2 , Sujin Bae 3 , Dohyung Park 1 , Youngin Kim 1, 4 , Jisun Park 5
Affiliation  

Weight loss for obese populations has been a challenging subject. There are numerous mobile applications to address weight loss, but the low retention rate is a barrier for the intervention. This is a retrospective study, aiming to investigate the effectiveness of financial incentives to achieve weight loss via a monetary reimbursement model on a smartphone application. Participants voluntarily purchased a 16-week mobile weight loss application program, and those who logged food intake three times a day received monetary reimbursement up to the full amount they initially paid. We analyzed health-related information and logged in-app activities from participants (N = 2,803) including age, sex, weight, food intake, and physical activity on their mobile healthcare application called Noom from January 2017 to April 2019. Analysis of covariance (ANCOVA) was used to compare differences between groups who succeeded and failed at food logging, controlling for baseline BMI. The ANCOVA found that participants who completed the food logging successfully for 16 weeks (N = 1,565) lost significantly more weight than those who failed food logging (N = 1,238, F = 56.0, p < 0.001). In addition, participants who were able to log their food intake successfully exercised more (F = 41.5, p < 0.001), read more in-app articles (F = 120.7, p < 0.001), and consumed more quantity of healthy foods (F = 12.8, p < 0.001). Monetary reimbursement is an effective tool for weight reduction by encouraging participants to monitor their health-related behaviors regularly.



中文翻译:

通过智能手机应用程序减轻体重的货币补偿模型的有效性:初步回顾性研究

肥胖人群的减肥一直是一个具有挑战性的课题。有许多移动应用程序可以解决减肥问题,但低保留率是干预的障碍。这是一项回顾性研究,旨在调查通过智能手机应用程序上的货币补偿模型实现减肥的财务激励措施的有效性。参与者自愿购买了一个为期 16 周的移动减肥应用程序,并且那些每天记录食物摄入量 3 次的人可以获得最高为他们最初支付的全额金额的货币报销。2017 年 1 月至 2019 年 4 月,我们分析了参与者 (N = 2,803) 的健康相关信息并记录了其应用程序内活动,包括年龄、性别、体重、食物摄入量和他们在名为 Noom 的移动医疗应用程序上的身体活动。协方差分析 (ANCOVA) 用于比较食物记录成功和失败组之间的差异,控制基线 BMI。ANCOVA 发现,成功完成 16 周食物记录的参与者 (N = 1.565) 比未能成功记录食物的参与者 (N = 1.238, F = 56.0,p  <0.001)。此外,能够成功记录食物摄入量的参与者锻炼更多(F = 41.5,p  <0.001),阅读更多应用内文章(F = 120.7,p  <0.001),并消耗更多健康食品(F = 12.8,p  < 0.001)。货币补偿是一种有效的减肥工具,它鼓励参与者定期监测他们的健康相关行为。

更新日期:2020-09-24
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