Digital Medicine

ORIGINAL ARTICLE
Year
: 2019  |  Volume : 5  |  Issue : 3  |  Page : 109--118

Evaluating the accuracy of the VitalWellness device


Nicole Polanco1, Sharon Odametey2, Seyyedeh Neda Derakhshani1, Mark Khachaturian3, Connor Devoe1, Kamal Jethwani2, Sujay Kakarmath2 
1 Connected Health Innovation, Partners HealthCare; Department of Dermatology, Massachusetts General Hospital, USA
2 Connected Health Innovation, Partners HealthCare; Department of Dermatology, Massachusetts General Hospital; Harvard Medical School, USA
3 Vital USA, USA

Correspondence Address:
Nicole Polanco
Partners Healthcare, 25 New Chardon St., 3rd Floor, Suite 300, Boston, 02114, Massachusetts
USA

Background and Objective: Portable and readily accessible wellness devices can aid vital sign measuring for those interested in tracking their health. In this diagnostic accuracy study, we evaluated the performance of the VitalWellness device (VW), a wireless, compact, noninvasive device that measures four vital signs (VS) – blood pressure (BP), heart rate (HR), respiratory rate (RR), and body temperature (BT) – using the index finger and forehead. Methods: Adult volunteers with VS that fell both within and outside of the normal physiological range were enrolled to provide BP, HR, RR, and BT measurements using both the VW and Food and Drug Administration-approved reference devices. A subgroup of participants underwent an additional test to analyze the VW's performance on HR and RR outside of normal physiological ranges. Statistical measurements were plotted on scatter and Bland–Altman plots. Sensitivity analyses to evaluate the VW's performance by gender, skin color, finger size, and auxiliary activities were performed. Results: A total of 263 participants completed the study. On an average, systolic BP measured using the VW was 10 mmHg lower than that of the reference device (correlation coefficient r = 0.7), whereas diastolic BP was 3 mmHg lower (r = 0.6), and RR was 2 bpm lower (r = 0.7). VW HR and BT measurements were, on average, 1 bpm and 0.3°F higher than the corresponding reference measurements (r = 0.9 and r = 0.3), respectively. Conclusion: The VW device is well-suited for home-based, nonmedical monitoring of HR, RR, and BP. Further improvement in measurement accuracy is required to enable applications for medical use.


How to cite this article:
Polanco N, Odametey S, Derakhshani SN, Khachaturian M, Devoe C, Jethwani K, Kakarmath S. Evaluating the accuracy of the VitalWellness device.Digit Med 2019;5:109-118


How to cite this URL:
Polanco N, Odametey S, Derakhshani SN, Khachaturian M, Devoe C, Jethwani K, Kakarmath S. Evaluating the accuracy of the VitalWellness device. Digit Med [serial online] 2019 [cited 2021 Apr 18 ];5:109-118
Available from: http://www.digitmedicine.com/article.asp?issn=2226-8561;year=2019;volume=5;issue=3;spage=109;epage=118;aulast=Polanco;type=0