Evidence map›Paper›PMID 11550103›Full record

ArticleJournal of human hypertension2001

The extent and implications of sphygmomanometer calibration error in primary care.

A Rouse, T Marshall

Abstract read
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In one paragraph

Article in Journal of human hypertension, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.0field-weighted citation impact, top 23% 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

27 citing papers in PubMed, 67 citations in OpenAlex.

  1. Trial
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  3. Treating to hypertension targets.Heart (British Cardiac Society) · 2004
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  12. Observational
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  17. Equipment errors: a prevalent cause for fallacy in blood pressure recording - a point prevalence estimate from an Indian health university.Indian journal of community medicine : official publication of Indian Association of Preventive & Social Medicine · 2013
    Article
  18. Article
  19. Type and accuracy of sphygmomanometers in primary care: a cross-sectional observational study.The British journal of general practice : the journal of the Royal College of General Practitioners · 2011
    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

2 authors at 1 institution in 1 country.

A RouseDepartment of Public Health and Epidemiology, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK. A.M.Rouse@bham.ac.uk
T Marshall
University of Birmingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimThe sphygmomanometer is an essential piece of diagnostic equipment, used in many routine consultations in primary care. Its accuracy depends on correct maintenance and calibration. This study was designed to: (1) assess the maintenance and calibration of sphygmomanometers in use in primary care; (2) assess the clinical, ethical, legal and public health implications of our findings.

methodA researcher assessed the accuracy of mercury and aneroid sphygmomanometers in use in 231 English general practices. He also made enquiries about arrangements for the maintenance and calibration of sphygmomanometers. We conducted a small telephone survey in general practices across the country to determine maintenance and calibration arrangements across the country. We carried out a modelling exercise to explore the clinical, ethical and public health implications of our findings.

resultsOf 1462 sphygmomanometers, 9.2% gave readings were more than 5 mm Hg inaccurate. No practice had arrangements for maintenance and calibration of sphygmomanometers. Nationally, one of 54 practices had an arrangement for maintenance and calibration. True hypertension is very uncommon in women under 35, a blood pressure which is measured as high is much more likely to be caused by calibration error than by hypertension.

conclusionIt is rare for sphygmomanometers used in primary care to be maintained and calibrated. Because of this women under 35 are at risk of misclassification and inappropriate treatment. This has ethical and public health implications. Clinicians using equipment which has not been maintained and calibrated may be medically negligent.

Indexed as

Primary Health CareAdolescentAdultAgedBlood PressureCalibrationData CollectionDiagnostic ErrorsEquipment FailureFemaleHumansHypertensionMaleMiddle AgedReproducibility of ResultsSphygmomanometers

Identifiers

PMID11550103
OpenAlexW2018645631

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.