Evidence map›Paper›PMID 17460712›Full record

ArticleJournal of human hypertension2007

The interarm blood pressure difference as predictor of cardiovascular events in patients with hypertension in primary care: cohort study.

C E Clark, J L Campbell, R J Powell

Abstract read
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In one paragraph

Article in Journal of human hypertension, 2007. 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
–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

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

  1. Pooled it
  2. Trial
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  4. Association of mortality with longitudinal changes in right- and left-arm blood pressure discrepancies among hypertensive adults.Hypertension research : official journal of the Japanese Society of Hypertension · 2026
    Article
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  6. 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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  15. [Research on the cardiovascular function evaluation system based on noninvasive detection indices].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2019
    Article
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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

3 authors.

C E ClarkPrimary Care Research Group, Institute of Health and Social Care Research, Peninsula Medical School, St Luke's Campus, Magdalen Road, Exeter, Devon, UK. christopher.clark@pms.ac.uk
J L Campbell
R J Powell

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives of this study were to measure the prevalence of a difference in blood pressure (BP) between arms and determine whether a difference is associated with increased risk of cardiovascular events or death. A prospective cohort study of 247 patients with hypertension was undertaken in one rural general practice in England. The main outcome measures were mean difference in BP between arms and new episodes of myocardial infarction, cerebrovascular event, onset of angina or peripheral vascular disease or death. A total of 57/247 (23%) patients had a mean difference in systolic BP between arms of >or=10 mm Hg and 8/247 (3%) had a mean difference of >or=20 mm Hg. A total of 15/247 (6%) patients had a mean difference in diastolic BP between arms of >or=10 mm Hg. Survival analysis after 4.7 years (range 3.3-5.9) showed a shorter mean survival time without event or death for patients with a difference in systolic BP of >or=10 mm Hg compared with a difference of <10 mm Hg (3.7 (95% confidence interval, 3.2-4.2) versus 4.8 (4.6-5.1) years; P<0.001; hazard ratio 2.5 (1.5-4.2), P=0.001). Difference in systolic BP of >or=10 mm Hg between arms is common in this primary care population and is associated with a shorter survival time to death or new cardiovascular event. Detection of a difference between arms may identify hypertensive patients at increased risk of cardiovascular events. Such an approach would allow more effective targeting of resources in primary prevention strategies.

Indexed as

Blood PressureAgedCardiovascular DiseasesCohort StudiesFemaleHumansHypertensionMalePrimary Health CareProspective Studies

Identifiers

PMID17460712

What OpenQuestion holds

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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.