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.
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 (http://www.hy-result.com).
aHypertension Unit, Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, F-75015 Paris, France
bINSERM UMRS1138, Centre de Recherche des Cordeliers, E22, Université Paris Descartes, Université Pierre et Marie Curie, Paris, France
cUnité de Recherche Clinique, Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou.F-75015 Paris, France
dUniversité Paris Descartes, Sorbonne Paris Cité, Faculté de Médecine, F-75006 Paris, France
eThot e-santé, Paris
fCHU de Quebec – Université Laval. Hôtel-Dieu de Québec. Quebec (QC) Canada G1R 2J6
gPole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
hDivision of Cardiology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
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Correspondence to Nicolas Postel-Vinay, MD, Hypertension Unit, Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, F-75015 Paris, France Tel: +33 1 56 09 37 71; fax: +33 1 56 09 20 40; e-mail: email@example.com
Received April 25, 2015
Received in revised form September 5, 2015
Accepted September 8, 2015