Evidence map›Paper›PMID 29984891›Full record

ReviewJournal of clinical hypertension (Greenwich, Conn.)2018

Prevalence of white coat and masked hypertension in Africa: A systematic review and meta-analysis.

Jean Jacques Noubiap, Jobert Richie Nansseu, Jan René Nkeck, Ulrich Flore Nyaga, Jean Joel Bigna

Open access · bronzeAbstract readReview
In one paragraph

Review in Journal of clinical hypertension (Greenwich, Conn.), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

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  15. An overview of heart failure in low- and middle-income countries.Cardiovascular diagnosis and therapy · 2020
    Review
  16. Article
  17. Article
  18. Clinical applications for out-of-office blood pressure monitoring.Therapeutic advances in chronic disease · 2020
    Review
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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

5 authors at 3 institutions in 3 countries.

Jean Jacques NoubiapDepartment of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa.ORCID http://orcid.org/0000-0002-7722-9757
Jobert Richie NansseuDepartment of Public Health, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon.ORCID http://orcid.org/0000-0001-6155-235X
Jan René NkeckDepartment of Internal Medicine and sub-Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon.
Ulrich Flore NyagaDepartment of Internal Medicine and sub-Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon.
Jean Joel BignaDepartment of Epidemiology and Public Health, Centre Pasteur of Cameroon, Yaoundé, Cameroon.ORCID http://orcid.org/0000-0001-8018-6279
Université de Yaoundé I · CMUniversité Paris-Sud · FRUniversity of Cape Town · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Data on masked hypertension (MH) and white-coat hypertension (WCH) in African populations are needed to estimate the true prevalence of hypertension in these populations because they have the highest burden of the disease. We conducted the first systematic review and meta-analysis that summarized available data on the prevalence of WCH and MH in Africa. We searched PubMed and Scopus to identify all the articles published on MH and WCH in populations living in Africa from inception to November 30, 2017. We reviewed each study for methodological quality. A random-effects model was used to estimate the prevalence of WCH and MH across studies. Eleven studies were included, all having a low-risk of bias. The prevalence of masked hypertension was 11% (95% CI: 4.7-19.3; 10 studies) in a pooled sample of 7789 individuals. The prevalence of WCH was 14.8% (95% CI: 9.4-21.1; 8 studies) in a pooled sample of 4451 individuals. There was no difference on the prevalence of WCH and MH between studies in which participants were recruited from the community and the hospital. The prevalence of MH was higher in urban areas compared to rural ones; there was no difference for WCH. WHC and MH seem to be frequent in African populations, suggesting the importance of out-of-clinic BP measurement in the diagnosis and management of patients with hypertension in Africa, especially in urban areas for MH.

Indexed as

ambulatory blood pressure/homeblood pressure monitorepidemiologygeneralhypertension

Identifiers

PMID29984891
PMCPMC8031123
OpenAlexW2863897956

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.