Evidence map›Paper›PMID 25690267›Full record

ArticleJournal of clinical hypertension (Greenwich, Conn.)2015

Ambulatory blood pressure monitoring to assess the white-coat effect in an elderly East African population.

Ashleigh Ivy, Jonathan Tam, Matthew J Dewhurst, William K Gray, Paul Chaote, Jane Rogathi, Felicity Dewhurst, Richard W Walker

Abstract read
In one paragraph

Article in Journal of clinical hypertension (Greenwich, Conn.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

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

  1. Pooled it
  2. Article
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  4. Review
  5. Article
  6. Article
  7. Article
  8. Retinal imaging to identify target organ damage in older Africans: A pilot study.Journal of clinical hypertension (Greenwich, Conn.) · 2018
    Article
  9. Review
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  14. From the Epidemiologist to the Physician: A Complex Issue for a Labile Risk.Journal of clinical hypertension (Greenwich, Conn.) · 2015
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Ashleigh IvyThe Medical School, Newcastle University, Newcastle upon Tyne, UK.
Jonathan Tam
Matthew J Dewhurst
William K Gray
Paul Chaote
Jane Rogathi
Felicity Dewhurst
Richard W Walker

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The authors hypothesized that published hypertension rates in Tanzania were influenced by the physiological response of individuals to blood pressure (BP) testing, known as the white-coat effect (WCE). To test this, a representative sample of 79 participants from a baseline cohort of 2322 people aged 70 years and older were followed to assess BP using conventional BP measurement (CBPM) and ambulatory BP monitoring (ABPM). There was a significant difference between daytime ABPM and CBPM for both systolic BP (mean difference 29.7 mm Hg) and diastolic BP (mean difference 7.4 mm Hg). Rates of hypertension were significantly lower when measured by 24-hour ABPM (55.7%) than by CBPM (78.4%). The WCE was observed in 54 participants (68.4%). The WCE was responsible for an increase in recorded BP. Accurate identification of individuals in need of antihypertensive medication is important if resources are to be used efficiently, especially in resource-poor settings.

Indexed as

AgedAged, 80 and overAntihypertensive AgentsBlood PressureBlood Pressure Monitoring, AmbulatoryCohort StudiesFemaleHumansMaleProspective StudiesTanzaniaWhite Coat HypertensionAntihypertensive Agents

Identifiers

PMID25690267
PMCPMC8032030

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.