Evidence map›Paper›PMID 32049066›Full record

ArticleJMIR mHealth and uHealth2020

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

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

Registry-linked trialAbstract readValidation Study
In one paragraph

Article in JMIR mHealth and uHealth, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05302193 (Non-invasive Blood Pressure Measurement Using Samsung Smartwatch), which is not on this map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT05302193 nacompletednot on this mapstarted 2021, after this paper: background citation

Non-invasive Blood Pressure Measurement Using Samsung Smartwatch

TypeinterventionalSponsorCzech Technical University in PragueRan2021 to 2021Enrolled27ConditionsBlood Pressure, Heart RateArmsCalm measurement of blood pressure and heart rate (before physical activity), Physical activity, Calm measurement of blood pressure and heart rate (after physical activity)
3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Christina HahnenCollege of Medicine, Radboud University Medical Center, Nijmegen, Netherlands.ORCID 0000-0001-8043-0526
Cecilia G FreemanSidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States.ORCID 0000-0002-0211-260X
Nilanjan HaldarSidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States.ORCID 0000-0003-3416-4567
Jacquelyn N HamatiSidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States.ORCID 0000-0001-7045-2668
Dylan M BardSidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States.ORCID 0000-0003-0818-6578
Vignesh MuraliSidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States.ORCID 0000-0002-5445-5639
Geno J MerliDepartment of Surgery and Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States.ORCID 0000-0002-8663-6872
Jeffrey I JosephDepartment of Anesthesiology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States.ORCID 0000-0002-4945-2070
Noud van HelmondDepartment of Anesthesiology, Cooper Medical School of Rowan University, Cooper University Health Care, Camden, NJ, United States.ORCID 0000-0003-1395-4754

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNew 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.

objectiveThe 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

methodsWe 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

resultsOf 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

conclusionsBoth 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.

Indexed as

Blood Pressure DeterminationMobile ApplicationsMonitoring, PhysiologicBlood PressureBlood Pressure MonitorsFemaleHeart RateHumansMaleMiddle AgedOximetryReproducibility of ResultsWearable Electronic Devicesmeasurements validitymedical devicesmHealthvital signs

Identifiers

PMID32049066
PMCPMC7055753

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.