Evidence map›Paper›PMID 27789511›Full record

SynthesisThe British journal of general practice : the journal of the Royal College of General Practitioners2016

Prevalence of systolic inter-arm differences in blood pressure for different primary care populations: systematic review and meta-analysis.

Christopher E Clark, Rod S Taylor, Angela C Shore, John L Campbell

Open access · bronzeAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in The British journal of general practice : the journal of the Royal College of General Practitioners, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
5.6field-weighted citation impact, top 3% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 84 citations in OpenAlex.

  1. Pooled it
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  8. The Critical Role of Community Pharmacists in Blood Pressure Monitoring.Medical science monitor : international medical journal of experimental and clinical research · 2024
    Review
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  19. Systolic inter-arm blood pressure difference and risk of cognitive decline in older people: a cohort study.The British journal of general practice : the journal of the Royal College of General Practitioners · 2020
    Article
  20. Article
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

4 authors at 2 institutions in 2 countries.

Christopher E ClarkPrimary Care Research Group, University of Exeter Medical School, Exeter.
Rod S TaylorPrimary Care Research Group, University of Exeter Medical School, Exeter.
Angela C ShoreNIHR Exeter Clinical Research Facility, Royal Devon and Exeter Hospital and Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter.
John L CampbellPrimary Care Research Group, University of Exeter Medical School, Exeter.
Exeter Primary Care · GBNIHR Exeter Clinical Research Facility · GB

Funding

Department of Health PB-PG-0215-36009
6 · The paper itself

Abstract

backgroundVarious prevalence figures have been reported for inter-arm differences in blood pressure (IAD); variation may be explained by differing population vascular risk and by measurement method.

aimTo review the literature to derive robust estimates of IAD prevalence relevant to community populations. DESIGN AND

settingSystematic review and meta-analysis.

methodMEDLINE, Embase, and CINAHL were searched for cross-sectional studies likely to represent general or primary care populations, reporting prevalence of IAD and employing a simultaneous method of measurement. Using study-level data, pooled estimates of mean prevalence of systolic IADs were calculated and compared using a random effects model.

resultsEighty IAD studies were identified. Sixteen met inclusion criteria: pooled estimates of prevalence for systolic IAD ≥10 mmHg were 11.2% (95% confidence interval [CI] = 9.1 to 13.6) in hypertension, 7.4% (95% CI = 5.8 to 9.2) in diabetes, and 3.6% (95% CI = 2.3 to 5.0) for a general adult population (P<0.001 for subgroup differences). Differences persisted for higher cut-off values. Prevalences were lower for East Asian than for Western populations and were overestimated by sequential measurement where this could be compared with simultaneous measurement within studies (relative risk for IAD: 2.9 [95% CI = 2.1 to 4.1]). Studies with higher mean absolute systolic pressures had higher prevalences for a systolic IAD ≥10 mmHg (P = 0.04).

conclusionPrevalences of IADs rise in relation to underlying cardiovascular comorbidities of the population studied, and are overestimated threefold when sequential measurement is used. Population-specific variation in prevalences of IAD should be taken into account in delivering clinical care and in planning future studies.

Indexed as

Blood Pressure DeterminationPrimary Health CareArmHumansHypertensionObserver VariationPrevalenceSystoleblood pressure determinationhypertensioninter-arm differenceprevalenceprimary care

Identifiers

PMID27789511
PMCPMC5072922
OpenAlexW2531676593

What OpenQuestion holds

Textmetadata
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.