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Assessing the Accuracy of Fitness Smartwatch Data for Cardiovascular and Physical Activity Monitoring: A Validation Study in Digital Health

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Automated, Real-Time Integration of Biometric Data From Wearable Devices With Electronic Medical Records: A

Julius K Weng¹, Ritupreet Virk², Kels Kaiser²

¹Department of Radiation Oncology, City of Hope Orange County Lennar Foundation Cancer Center, Irvine, CA.

JCO Clinical Cancer Informatics

|September 30, 2024

Summary

This study shows that integrating Apple Watch biometric data into electronic medical records (EMRs) for radiotherapy patients is feasible. Physician review and patient satisfaction were high, supporting future wearable data collection.

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Area of Science:

Oncology
Digital Health
Medical Informatics

Background:

Lack of device integration with electronic medical records (EMRs) hinders clinical use of biometric data.
Developed infrastructure to transmit Apple Watch data into EMR for physician review.
Tested feasibility in patients undergoing radiotherapy.

Purpose of the Study:

Evaluate the feasibility of integrating biometric data from an Apple Watch into EMR for radiotherapy patients.
Assess physician review rates and patient satisfaction with the system.

Main Methods:

Included breast/prostate cancer patients receiving radiotherapy and owning an Apple Watch.
Transferred daily heart rate, HR variability, steps, and exercise minutes to EMR via a custom app.
Radiation oncologists reviewed data weekly; feasibility defined as ≥90% physician review.

Main Results:

Met feasibility threshold: 95% of patients had data reviewed by physicians.
Exercise minutes decreased over time (P=.01) in longer radiation courses (≥4 weeks).
Daily mean HR variability increased over time (P=.02); median System Usability Scale (SUS) was 82.5.

Conclusions:

Demonstrated feasibility of real-time biometric data integration from Apple Watch to EMR.
High physician review rates and patient satisfaction support further development.
Supports large-scale collection of wearable device data in clinical settings.