Evidence map›Paper›PMID 37880326›Full record

ArticleJournal of human hypertension2025

High prevalence but lack of awareness of hypertension in South Africa, particularly among men and young adults.

Angela J Woodiwiss, Ane Orchard, Catharina M C Mels, Aletta S Uys, Benedicta N Nkeh-Chungag, Andrea Kolkenbeck-Ruh, Lisa J Ware, Samantha Yates, Erika S W Jones, Vernice R Peterson and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of human hypertension, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
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  5. Hypertension Prevalence and Associated Risk Factors in a South African Population.International journal of environmental research and public health · 2026
    Observational
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  8. Review
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  15. Review
  16. Hypertension Criteria and the Early Detection of Vascular Aging in Youth.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2025
    Article
  17. Article
  18. Article
  19. Article
  20. No Association BetweenDiabetes, metabolic syndrome and obesity : targets and therapy · 2024
    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

11 authors at 7 institutions in 2 countries.

Angela J WoodiwissCardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. angela.woodiwiss@wits.ac.za.ORCID http://orcid.org/0000-0003-2555-4125
Ane OrchardClinical Pharmacy Division, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.ORCID http://orcid.org/0000-0001-6767-7110
Catharina M C MelsHypertension in Africa Research Team (HART), Faculty of Health Sciences, North-West University, Potchefstroom, South Africa.ORCID http://orcid.org/0000-0003-0138-3341
Aletta S UysHypertension in Africa Research Team (HART), Faculty of Health Sciences, North-West University, Potchefstroom, South Africa.
Benedicta N Nkeh-ChungagDepartment of Biological and Environmental Sciences, Faculty of Natural Science, Walter Sisulu University, Mthatha, South Africa.
Andrea Kolkenbeck-RuhCardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Lisa J WareSAMRC-Wits Developmental Pathways to Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.ORCID http://orcid.org/0000-0002-9762-4017
Samantha YatesDepartment of Life and Consumer Sciences, University of South Africa (UNISA), Science Campus, Roodepoort, South Africa.ORCID http://orcid.org/0000-0001-9245-8104
Erika S W JonesDivision of Nephrology and Hypertension, University of Cape Town, Cape Town, South Africa.ORCID http://orcid.org/0000-0002-3569-3498
Vernice R PetersonCardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Neil R PoulterImperial Clinical Trials Unit, Imperial College London, Stadium House, 68 Wood Lane, London, W12 7RH, UK.ORCID http://orcid.org/0000-0002-6292-997X
University of the Witwatersrand · ZANorth-West University · ZASouth African Medical Research Council · ZAImperial College London · GBUniversity of Cape Town · ZAUniversity of South Africa · ZAWalter Sisulu University · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cardiovascular disease (CVD) is a leading cause of death in South Africa (SA) and high blood pressure (BP) is the primary risk factor. However, hypertension prevalence is high, BP control is poor and CV events occur at a younger age than in Europe or America. Increasing screening, raising awareness and improving management of hypertension are critical to prevent CVD in SA. May Measurement Month (MMM) is a global initiative of the International Society of Hypertension aimed at raising awareness of high BP. As part of the MMM campaign, in SA (2017, 2018, 2019 and 2021), BP measurements and a cross-sectional survey of volunteers aged ≥ 18years were performed. Of 11,320 individuals (age 36.6 ± 16.8years) screened, 29.7% had hypertension (systolic BP/diastolic BP ≥ 140/90 mmHg or antihypertensive medication use) and the prevalence was higher (p < 0.0001) in men (35.6%) than in women (26.3%). Of those with hypertension, only 54.3% were aware and 46.8% were receiving antihypertensive medication, and 53.7% of these had controlled BP. In men with hypertension, awareness (45.2%, treatment (38.2%) and controlled BP on antihypertensive medication (45.2%) were lower (p < 0.0001) than in women (awareness: 60.8%; treatment: 53.5%; controlled BP: 58.3%). In young participants (age < 40years), 15.6% had hypertension, 18.6% of these were on treatment but 76.0% were not aware, and only 57.7% had controlled BP. The high prevalence of hypertension, but low levels of awareness, treatment, and BP control in SA, especially in young adults and men, highlight the need for systematic BP screening programmes and improvements in education and management of hypertension.

Indexed as

Blood PressureHealth Knowledge, Attitudes, PracticeHypertensionAdolescentAdultAgedAge FactorsAntihypertensive AgentsAwarenessCross-Sectional StudiesFemaleHumansMaleMiddle AgedPrevalenceRisk FactorsAntihypertensive Agents

Identifiers

PMID37880326
PMCPMC11867971
OpenAlexW4387949888

What OpenQuestion holds

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LicenceCC BY
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.