Evidence map›Paper›PMID 21835296›Full record

Trial reportAmerican heart journal2011

Combination therapy as initial treatment for newly diagnosed hypertension.

James B Byrd, Chan Zeng, Heather M Tavel, David J Magid, Patrick J O'Connor, Karen L Margolis, Joe V Selby, P Michael Ho

Abstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in American heart journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 2 syntheses or guidelines 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

8 authors.

James B ByrdDepartment of Medicine, University of Colorado, School of Medicine, Aurora, USA. brian.byrd@ucdenver.edu
Chan Zeng
Heather M Tavel
David J Magid
Patrick J O'Connor
Karen L Margolis
Joe V Selby
P Michael Ho

Funding

HMO Research Network Cardiovascular Research NetworkU19HL091179 · NHLBI · KAISER FOUNDATION RESEARCH INSTITUTE · PI GO, ALAN S · 2007 to 2011
$8.7M
NHLBI NIH HHS U19 HL091179NHLBI NIH HHS U19HL091179
6 · The paper itself

Abstract

backgroundThe Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure recommends that clinicians consider the use of multidrug therapy to increase likelihood of achieving blood pressure goal. Little is known about recent patterns of combination antihypertensive therapy use in patients being initiated on hypertension treatment.

methodsWe investigated combination antihypertensive therapy use in newly diagnosed hypertensive patients from the Cardiovascular Research Network Hypertension Registry. Multivariable logistic regression was used to assess the relationship between combination antihypertensive therapy and 12-month blood pressure control.

resultsBetween 2002 and 2007, a total of 161,585 patients met criteria for incident hypertension and were initiated on treatment. During the study period, an increasing proportion of patients were treated initially with combination rather than with single-agent therapy (20.7% in 2002 compared with 35.8% in 2007, P < .001). This increase in combination therapy use was more pronounced in patients with stage 2 hypertension, whose combination therapy use increased from 21.6% in 2002 to 44.5% in 2007. Nearly 90% of initial combination therapy was accounted for by 2 combinations, a thiazide and a potassium-sparing diuretic (47.6%) and a thiazide and an angiotensin-converting enzyme inhibitor (41.4%). After controlling for relevant clinical factors, including subsequent intensification of treatment and medication adherence, combination therapy was associated with increased odds of blood pressure control at 12 months (odds ratio compared with single-drug initial therapy 1.20; 95% CI 1.15-1.24, P < .001).

conclusionsInitial treatment of hypertension with combination therapy is increasingly common and is associated with better long-term blood pressure control.

Indexed as

Diagnostic Techniques, CardiovascularAntihypertensive AgentsBlood PressureDose-Response Relationship, DrugDrug Therapy, CombinationFemaleFollow-Up StudiesHumansHypertensionMaleMiddle AgedRetrospective StudiesTime FactorsTreatment OutcomeAntihypertensive Agents

Identifiers

PMID21835296
PMCPMC3153357

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Registered trials

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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.