Accuracy of Vital Signs Measurements by a Smartwatch and a Portable Health Device: Validation Study.

Authors

• Christina Hahnen
• Cecilia G Freeman
• Nilanjan Haldar
• Jacquelyn N Hamati
• Dylan M Bard
• Vignesh Murali
• Geno J Merli
• Jeffrey I Joseph
• Noud van Helmond

Publication/Presentation Date

2-12-2020

Abstract

BACKGROUND: New consumer health devices are being developed to easily monitor multiple physiological parameters on a regular basis. Many of these vital sign measurement devices have yet to be formally studied in a clinical setting but have already spread widely throughout the consumer market.

OBJECTIVE: The aim of this study was to investigate the accuracy and precision of heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), and oxygen saturation (SpO

METHODS: We enrolled 127 patients (>18 years) from the Thomas Jefferson University Hospital Preadmission Testing Center. SBP and HR were measured by both investigational devices. In addition, the Everlast watch was utilized to measure DBP, and the BodiMetrics Performance Monitor was utilized to measure SpO

RESULTS: Of 85 participants, 36 (42%) were women, and the mean age was 53 (SD 21) years. The accuracy guidelines were only met for the HR measurements in both devices. SBP measurements deviated 16.9 (SD 13.5) mm Hg and 5.3 (SD 4.7) mm Hg from the reference values for the Everlast and BodiMetrics devices, respectively. The mean absolute difference in DBP measurements for the Everlast smartwatch was 8.3 (SD 6.1) mm Hg. The mean absolute difference between BodiMetrics and reference SpO

CONCLUSIONS: Both devices we investigated met accuracy guidelines for HR measurements, but they failed to meet the predefined accuracy guidelines for other vital sign measurements. Continued sale of consumer physiological monitors without prior validation and approval procedures is a public health concern.

Volume

8

Issue

2

First Page

16811

Last Page

16811

ISSN

2291-5222

Published In/Presented At

Hahnen, C., Freeman, C. G., Haldar, N., Hamati, J. N., Bard, D. M., Murali, V., Merli, G. J., Joseph, J. I., & van Helmond, N. (2020). Accuracy of Vital Signs Measurements by a Smartwatch and a Portable Health Device: Validation Study. JMIR mHealth and uHealth, 8(2), e16811. https://doi.org/10.2196/16811

Disciplines

Medicine and Health Sciences

PubMedID

32049066

Department(s)

Department of Surgery

Document Type

Article