Evidence map›Paper›PMID 34671490›Full record

ReviewInternational journal of hypertension2021

Prevalence of Chronic Kidney Disease as a Marker of Hypertension Target Organ Damage in Africa: A Systematic Review and Meta-Analysis.

Samuel O Ajayi, Udeme E Ekrikpo, Anyiekere M Ekanem, Yemi R Raji, Okechukwu S Ogah, Dike B Ojji, Ugochi S Okpechi-Samuel, Kwazi C Z Ndlovu, Aminu K Bello, Ikechi G Okpechi

Open access · goldAbstract readReview
In one paragraph

Review in International journal of hypertension, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 3 pooled it
2.7field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 3 syntheses or guidelines pooled it, 23 citations in OpenAlex.

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  4. Review
  5. Knowledge, attitudes and practices on hypertension among patients in a district hospital.South African family practice : official journal of the South African Academy of Family Practice/Primary Care · 2025
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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

10 authors at 6 institutions in 3 countries.

Samuel O AjayiDepartment of Medicine, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria.
Udeme E EkrikpoRenal Unit, Department of Internal Medicine, University of Uyo, Uyo, Nigeria.ORCID https://orcid.org/0000-0002-3911-5564
Anyiekere M EkanemDepartment of Community Health, Faculty of Clinical Sciences, University of Uyo, Uyo, Nigeria.
Yemi R RajiDepartment of Medicine, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria.
Okechukwu S OgahDepartment of Medicine, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria.
Dike B OjjiDepartment of Medicine, Faculty of Clinical Sciences, University of Abuja, and University of Abuja Teaching Hospital, Gwagwalada, Nigeria.
Ugochi S Okpechi-SamuelDepartment of Internal Medicine, Federal Medical Centre, Jabi, Abuja, Nigeria.
Kwazi C Z NdlovuDivision of Nephrology and Hypertension, University of Cape Town, Cape Town, South Africa.ORCID https://orcid.org/0000-0001-5283-2085
Aminu K BelloDivision of Nephrology and Immunology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
Ikechi G OkpechiDivision of Nephrology and Hypertension, University of Cape Town, Cape Town, South Africa.ORCID https://orcid.org/0000-0002-6545-9715
University of Alberta · CAUniversity of Cape Town · ZAUniversity of Ibadan · NGUniversity of Uyo · NGFederal Medical Centre · NGUniversity of Abuja Teaching Hospital · NG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionHypertension is a major global cause of cardiovascular disease and death with rising worldwide prevalence, particularly in low-income countries. With low awareness, poor treatment, and low control of hypertension in Africans, there is an increased number of patients with target organ damage (TOD), especially chronic kidney disease (CKD), as a consequence of hypertension. The aim of our study is to assess the prevalence of CKD from studies in Africa reporting TOD related to hypertension.

methodsWe performed a search of PubMed/MEDLINE, Web of Science, EBSCOhost, and African Journals Online (AJOL) for studies reporting on CKD as TOD in patients with hypertension. The pooled estimate of CKD was then presented by subregions, age group, eGFR equations, and urban or rural location.

resultsWe identified 1,334 articles from which 12 studies were included for quantitative analysis. The studies included 5297 participants from 6 countries (Ghana, Nigeria, Uganda, Tanzania, Democratic Republic of Congo, and South Africa). The pooled prevalence of CKD was 17.8% (95% CI 13.0-23.3%), and CKD was significantly more prevalent in West Africa (21.3% (95% CI: 16.1-27.0);

conclusionThis study reports a high prevalence of CKD related to hypertension with a higher prevalence in urban than rural areas. This emphasizes the role of hypertension in causing kidney damage, and the need for strategies to improve awareness, treatment, and control of hypertension in Africans. This study is registered with PROSPERO registration number CRD42018089263.

Identifiers

PMID34671490
PMCPMC8523261
OpenAlexW3207577958

What OpenQuestion holds

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LicenceCC BY
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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.