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    Research Letter
    Health Policy
    February 7, 2020

    Smartphones vs Wearable Devices for Remotely Monitoring Physical Activity After Hospital Discharge: A Secondary Analysis of a Randomized Clinical Trial

    Author Affiliations
    • 1Perelman School of Medicine, University of Pennsylvania, Philadelphia
    • 2Wharton School, University of Pennsylvania, Philadelphia
    • 3Penn Medicine Nudge Unit, University of Pennsylvania, Philadelphia
    • 4Leonard Davis Institute for Health Economics, University of Pennsylvania, Philadelphia
    • 5LDI Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia
    • 6Department of Medicine, Crescenz Veterans Affairs Medical Center, Philadelphia, Pennsylvania
    • 7Department of Health Policy and Management, Johns Hopkins University, Baltimore, Maryland
    • 8Department of Statistics and Data Science, Carnegie Mellon University, Pittsburgh, Pennsylvania
    JAMA Netw Open. 2020;3(2):e1920677. doi:10.1001/jamanetworkopen.2019.20677

    Nearly 80% of US adults own a smartphone,1 which accurately tracks physical activity.2 Wearable devices are growing in adoption and can track other biometrics.2-4 However, it is unknown whether smartphones or wearables are more sustainable for remotely monitoring patients over longer-term periods. The objective of this study was to compare the duration of remotely monitoring physical activity from smartphones vs wearables in the 6 months after hospital discharge.

    This secondary analysis of a randomized clinical trial was approved by the University of Pennsylvania institutional review board and followed the Consolidated Standards of Reporting Trials (CONSORT) reporting guideline. Data were obtained from an ongoing trial that enrolled patients from January 23, 2017, to January 7, 2019.5 Patients provided written informed consent to participate in the trial.