End points
SECONDARY
The primary study end point was a change in body weight as measured by the FitBit Aria Air Bluetooth scale. Secondary end points included feasibility, acceptability, and safety. Across the mHealth literature, there is significant heterogeneity in study design and no agreed-upon standard of feasibility. For these reasons, we defined feasibility according to user engagement.Exploratory secondary efficacy end points were calculated by capturing pertinent clinical data within 28 days of study completion where available to include similar data to those that were recorded at the time of study enrollment (listed above).No significant modifications were made to the original study protocol.