Self-monitoring of blood pressure in hypertension: A systematic review and individual patient data meta-analysis.

dc.contributor.author

Tucker, Katherine L

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Sheppard, James P

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Stevens, Richard

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Bosworth, Hayden B

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Bove, Alfred

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Bray, Emma P

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Earle, Kenneth

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George, Johnson

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Godwin, Marshall

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Green, Beverly B

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Hebert, Paul

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Hobbs, FD Richard

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Kantola, Ilkka

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Kerry, Sally M

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Leiva, Alfonso

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Magid, David J

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Mant, Jonathan

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Margolis, Karen L

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McKinstry, Brian

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McLaughlin, Mary Ann

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Omboni, Stefano

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Ogedegbe, Olugbenga

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Parati, Gianfranco

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Qamar, Nashat

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Tabaei, Bahman P

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Varis, Juha

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Verberk, Willem J

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Wakefield, Bonnie J

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McManus, Richard J

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Rahimi, Kazem

dc.date.accessioned

2024-01-31T00:39:32Z

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2024-01-31T00:39:32Z

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2017-09

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Background

Self-monitoring of blood pressure (BP) appears to reduce BP in hypertension but important questions remain regarding effective implementation and which groups may benefit most. This individual patient data (IPD) meta-analysis was performed to better understand the effectiveness of BP self-monitoring to lower BP and control hypertension.

Methods and findings

Medline, Embase, and the Cochrane Library were searched for randomised trials comparing self-monitoring to no self-monitoring in hypertensive patients (June 2016). Two reviewers independently assessed articles for eligibility and the authors of eligible trials were approached requesting IPD. Of 2,846 articles in the initial search, 36 were eligible. IPD were provided from 25 trials, including 1 unpublished study. Data for the primary outcomes-change in mean clinic or ambulatory BP and proportion controlled below target at 12 months-were available from 15/19 possible studies (7,138/8,292 [86%] of randomised participants). Overall, self-monitoring was associated with reduced clinic systolic blood pressure (sBP) compared to usual care at 12 months (-3.2 mmHg, [95% CI -4.9, -1.6 mmHg]). However, this effect was strongly influenced by the intensity of co-intervention ranging from no effect with self-monitoring alone (-1.0 mmHg [-3.3, 1.2]), to a 6.1 mmHg (-9.0, -3.2) reduction when monitoring was combined with intensive support. Self-monitoring was most effective in those with fewer antihypertensive medications and higher baseline sBP up to 170 mmHg. No differences in efficacy were seen by sex or by most comorbidities. Ambulatory BP data at 12 months were available from 4 trials (1,478 patients), which assessed self-monitoring with little or no co-intervention. There was no association between self-monitoring and either lower clinic or ambulatory sBP in this group (clinic -0.2 mmHg [-2.2, 1.8]; ambulatory 1.1 mmHg [-0.3, 2.5]). Results for diastolic blood pressure (dBP) were similar. The main limitation of this work was that significant heterogeneity remained. This was at least in part due to different inclusion criteria, self-monitoring regimes, and target BPs in included studies.

Conclusions

Self-monitoring alone is not associated with lower BP or better control, but in conjunction with co-interventions (including systematic medication titration by doctors, pharmacists, or patients; education; or lifestyle counselling) leads to clinically significant BP reduction which persists for at least 12 months. The implementation of self-monitoring in hypertension should be accompanied by such co-interventions.
dc.identifier

PMEDICINE-D-16-03401

dc.identifier.issn

1549-1277

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1549-1676

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https://hdl.handle.net/10161/29903

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eng

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Public Library of Science (PLoS)

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PLoS medicine

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10.1371/journal.pmed.1002389

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https://creativecommons.org/licenses/by-nc/4.0

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Humans

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Hypertension

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Antihypertensive Agents

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Blood Pressure Monitoring, Ambulatory

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Life Style

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Blood Pressure

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Patient Education as Topic

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Randomized Controlled Trials as Topic

dc.title

Self-monitoring of blood pressure in hypertension: A systematic review and individual patient data meta-analysis.

dc.type

Journal article

duke.contributor.orcid

Bosworth, Hayden B|0000-0001-6188-9825

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e1002389

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9

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Duke

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School of Medicine

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Basic Science Departments

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Clinical Science Departments

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Institutes and Centers

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Medicine

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Psychiatry & Behavioral Sciences

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Medicine, General Internal Medicine

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Duke Cancer Institute

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Duke Clinical Research Institute

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Institutes and Provost's Academic Units

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Center for the Study of Aging and Human Development

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Initiatives

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Duke Science & Society

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Population Health Sciences

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Duke Innovation & Entrepreneurship

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Psychiatry & Behavioral Sciences, Behavioral Medicine & Neurosciences

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Duke - Margolis Center For Health Policy

pubs.publication-status

Published

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14

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