App engagement and weight loss in a mobile health study (mDiab)
ISPAH ePoster Library. Harish R. Oct 15, 2018; 225537; 191
Ranjani Harish
Ranjani Harish
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Abstract PurposeThe purpose of this study was to evaluate the association of app engagement with change in weight and BMI as part of the mobile health technology for the prevention of type 2 diabetes (mDiab) trial.MethodsThe mDiab app included 12 weeks of video lessons administered to 267 obese participants who received the app as part of the intervention group. Additionally, participants received coach calls who summarized the weekly lessons and presented feedback on their tracked diet, physical activity and weight loss behaviours. App engagement was divided into four groups - no engagement, only videos, only coach calls, video and coach calls. ResultsWithin a 3-4 month period, participants who viewed the video lessons showed a significant decrease in weight and obesity. Those who attended coach calls also showed a similar trend but this did not reach statistical significance. The participants who both attended the calls and saw the videos showed a significant decrease in weight and BMI however there was no synergistic effect (Table 1). ConclusionsEngagement with the mDiab app resulted in decreased weight and BMI with the strongest effect seen for the video lessons.Table 1: Association of app engagement with weight loss and BMIDependent variable: Engagement Difference in weight Difference in BMI Reference category: Participants who did not engage Participants who attended only coach calls -0.897 -0.302 [-2.14,0.35] [-0.76,0.16]Participants who viewed only videos -2.410** -0.800* [-4.10,-0.72] [-1.43,-0.17]Participants who did both -1.282* -0.468* [-2.47,-0.10] [-0.91,-0.03]* p<0.05, ** p<0.01, *** p<0.001 External funding details This study is supported by a funding from the Government of India under the Biotechnology Industry Partnership Programme of the Department of Biotechnology
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