Evidence map›Paper›PMID 34144696›Full record

SynthesisBMC cancer2021

Viral hepatitis associated hepatocellular carcinoma on the African continent, the past, present, and future: a systematic review.

Ottovon Bismark Dakurah, Cynthia Raissa Tchuem Tamandjou, Moleen Zunza, Wolfgang Preiser, Tongai Gibson Maponga

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in BMC cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
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

21 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. [Delta hepatitis in Africa: epidemiological and clinical particularities].Medecine tropicale et sante internationale · 2023
    Review
  13. Review
  14. Article
  15. Observational
  16. Malignancy and viral infections in Sub-Saharan Africa: A review.Frontiers in virology (Lausanne, Switzerland) · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. Review
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 2 institutions in 1 country.

Ottovon Bismark DakurahAfrican Cancer Institute, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa. 22204911@sun.ac.za.
Cynthia Raissa Tchuem TamandjouDivision of Health Economics, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa.
Moleen ZunzaDivision of Epidemiology and Biostatistics, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
Wolfgang PreiserDivision of Medical Virology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
Tongai Gibson MapongaDivision of Medical Virology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
Stellenbosch University · ZAUniversity of Cape Town · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHepatocellular carcinoma (HCC) is one of the leading causes of cancer-related deaths in Africa. In Africa, the major causes of HCC include chronic infection with hepatitis B virus (HBV) and/or hepatitis C virus (HCV). Knowledge of the changes in the incidence of viral hepatitis-associated HCC over time and the factors responsible for such changes is key in informing policies for the prevention of viral hepatitis-associated HCC in Africa.

aimThe study aimed to systematically summarize the changes in the prevalence of viral hepatitis among HCC patients and the overall effect of the prevalence of viral hepatitis on the incidence of HCC over the past four decades in Africa (1980-2019).

methodsA literature search was conducted in MEDLINE (PubMed), Google Scholar, Science Direct, Scopus, Web of Science, and African wide web for articles published on viral hepatitis-associated HCC in Africa from 1980 to 2019. The abstracts of the articles were screened for eligibility and those meeting the inclusion criteria were retrieved and reviewed.

resultsA total of 272 studies were included in the analysis. Viral hepatitis-related HCC incidence changed by 1.17% (95% confidence interval (CI): 0.63-1.71, p < 0.001), 0.82% (95% CI: 0.45-1.18, p < 0.001), and 3.34% (95% CI: 2.44-4.25, p < 0.001) for every 1% change in the prevalence of HBV, HCV, and hepatitis D virus (HDV) respectively, per decade. The incidence of HBV-related HCC decreased by - 0.50% (95% CI: - 0.74 - - 0.25, p < 0.001) over the last 40 years, while HCV-related HCC increased.

conclusionOverall, the incidence of viral hepatitis-associated HCC has not declined, mainly due to no decline in the prevalence of HCV, HDV, and the high number of chronic hepatitis B carriers on the African continent. There is an urgent need for the allocation of resources for the implementation of treatment and preventive programs for HBV, HCV, HDV, and HCC in Africa. This systematic review is registered with PROSPERO®, number CRD42020169723.

Indexed as

AfricaCarcinoma, HepatocellularHepatitis BHepatitis CHepatitis DHepatitis, Viral, HumanHumansLiver NeoplasmsAfricaDirect-acting antivirals (DAAs)Hepatitis B virusHepatitis C virusHepatitis D virusHepatocellular carcinomaSub-Saharan Africa

Identifiers

PMID34144696
PMCPMC8214285
OpenAlexW3133825833

What OpenQuestion holds

Textmetadata
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.