Evidence map›Paper›PMID 33741659›Full record

ArticleBMJ open2021

Arm Based on LEg blood pressures (ABLE-BP): can systolic leg blood pressure measurements predict systolic brachial blood pressure? Protocol for an individual participant data meta-analysis from the INTERPRESS-IPD Collaboration.

Sinead T J McDonagh, James P Sheppard, Fiona C Warren, Kate Boddy, Leon Farmer, Helen Shore, Phil Williams, Philip S Lewis, Rachel Baumber, Jayne Fordham and 4 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 2 pooled it
–field-weighted citation impact, top 95% of its field
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

2 citing papers in PubMed, 2 syntheses or guidelines pooled it, 3 citations in OpenAlex.

  1. Guideline
  2. Pooled it
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

14 authors at 6 institutions in 2 countries.

Sinead T J McDonaghPrimary Care Research Group, University of Exeter, Exeter, UK.ORCID http://orcid.org/0000-0002-0283-3095
James P SheppardNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.ORCID http://orcid.org/0000-0002-4461-8756
Fiona C WarrenPrimary Care Research Group, University of Exeter, Exeter, UK.
Kate BoddyNIHR CLAHRC South West Peninsula (PenCLAHRC), University of Exeter, Exeter, UK.ORCID http://orcid.org/0000-0001-9135-5488
Leon FarmerPatient and Public Involvement Advisor, Exeter, UK.
Helen ShorePatient and Public Involvement Advisor, Exeter, UK.
Phil WilliamsPatient and Public Involvement Advisor, Exeter, UK.
Philip S LewisDepartment of Cardiology, Stockport NHS Foundation Trust, Stockport, UK.
Rachel BaumberRoyal National Orthopaedic Hospital Stanmore, Stanmore, UK.
Jayne FordhamMid Devon Medical Practice, Exeter, UK.
Una MartinInstitute of Clinical Sciences, University of Birmingham, Birmingham, UK.
Victor AboyansDepartment of Cardiology, Centre Hospitalier Universitaire de Limoges, Limoges, France.
Christopher E ClarkPrimary Care Research Group, University of Exeter, Exeter, UK c.e.clark@exeter.ac.uk.ORCID http://orcid.org/0000-0002-7526-3038
INTERPRESS-IPD Collaborators
University of Exeter · GBCentre Hospitalier Universitaire de Limoges · FRRoyal National Orthopaedic Hospital · GBStockport NHS Foundation Trust · GBUniversity of Birmingham · GBUniversity of Oxford · GB

Funding

Wellcome Trust 211182/Z/18/Z
6 · The paper itself

Abstract

introductionBlood pressure (BP) is normally measured on the upper arm, and guidelines for the diagnosis and treatment of high BP are based on such measurements. Leg BP measurement can be an alternative when brachial BP measurement is impractical, due to injury or disability. Limited data exist to guide interpretation of leg BP values for hypertension management; study-level systematic review findings suggest that systolic BP (SBP) is 17 mm Hg higher in the leg than the arm. However, uncertainty remains about the applicability of this figure in clinical practice due to substantial heterogeneity.

aimsTo examine the relationship between arm and leg SBP, develop and validate a multivariable model predicting arm SBP from leg SBP and investigate the prognostic association between leg SBP and cardiovascular disease and mortality. METHODS AND ANALYSIS: Individual participant data (IPD) meta-analyses using arm and leg SBP measurements for 33 710 individuals from 14 studies within the Inter-arm blood pressure difference IPD (INTERPRESS-IPD) Collaboration. We will explore cross-sectional relationships between arm and leg SBP using hierarchical linear regression with participants nested by study, in multivariable models. Prognostic models will be derived for all-cause and cardiovascular mortality and cardiovascular events. ETHICS AND DISSEMINATION: Data originate from studies with prior ethical approval and consent, and data sharing agreements are in place-no further approvals are required to undertake the secondary analyses proposed in this protocol. Findings will be published in peer-reviewed journal articles and presented at conferences. A comprehensive dissemination strategy is in place, integrated with patient and public involvement. PROSPERO REGISTRATION NUMBER: CRD42015031227.

Indexed as

HypertensionLegBlood PressureBlood Pressure DeterminationCross-Sectional StudiesHumansMeta-Analysis as Topiccardiologyprimary carerisk management

Identifiers

PMID33741659
PMCPMC7986760
OpenAlexW3139433280

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.