Table 1.

Mobile health devices used and time points for data collection.

Variable	Instrument	Time points
Weight (pounds)	Cellular-enabled Scale (BodyTrace)	Daily
Blood glucose (mg/dL)	Food and Drug Association-approved wireless glucometer (iHealth)	As prescribed by the primary care physician, at least once a week
Physical activity (number of steps)	Triaxial accelerometer and associated fitness app (Fitbit)	Daily
Hemoglobin A1c (mmol/mol)	Electronic health record laboratory results	Baseline and 6 months postbaseline