Automated interpretation of home blood pressure assessment (Hy-Result software) versus physician’s assessment: a validation study : Blood Pressure Monitoring

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Devices and Technology

Automated interpretation of home blood pressure assessment (Hy-Result software) versus physician’s assessment

a validation study

Postel-Vinay, Nicolas; Bobrie, Guillaume; Ruelland, Alan; Oufkir, Majida; Savard, Sebastien; Persu, Alexandre; Katsahian, Sandrine; Plouin, Pierre F.

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Blood Pressure Monitoring 21(2):p 111-117, April 2016. | DOI: 10.1097/MBP.0000000000000162



Hy-Result is the first software for self-interpretation of home blood pressure measurement results, taking into account both the recommended thresholds for normal values and patient characteristics. We compare the software-generated classification with the physician’s evaluation.

Design method 

The primary assessment criterion was whether algorithm classification of the blood pressure (BP) status concurred with the physician’s advice (blinded to the software’s results) following a consultation (n=195 patients). Secondary assessment was the reliability of text messages.


In the 58 untreated patients, the agreement between classification of the BP status generated by the software and the physician’s classification was 87.9%. In the 137 treated patients, the agreement was 91.9%. The κ-test applied for all the patients was 0.81 (95% confidence interval: 0.73–0.89). After correction of errors identified in the algorithm during the study, agreement increased to 95.4% [κ=0.9 (95% confidence interval: 0.84–0.97)]. For 100% of the patients with comorbidities (n=46), specific text messages were generated, indicating that a physician might recommend a target BP lower than 135/85 mmHg. Specific text messages were also generated for 100% of the patients for whom global cardiovascular risks markedly exceeded norms.


Classification by Hy-Result is at least as accurate as that of a specialist in current practice (

Copyright © 2016 Wolters Kluwer Health, Inc. All rights reserved.

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