Evidence map›Paper›PMID 35294726›Full record

ArticleClinical drug investigation2022

Cost-Effectiveness of Bivalent, Quadrivalent, and Nonavalent HPV Vaccination in South Africa.

Daniel Tobias Michaeli, Sophia Stoycheva, Simon Mashudu Marcus, Wenjia Zhang, Julia Caroline Michaeli, Thomas Michaeli

Open access · hybridAbstract read
In one paragraph

Article in Clinical drug investigation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

8 citing papers in PubMed, 16 citations in OpenAlex.

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  7. Herd immunity or health equity? - extending HPV vaccination.The Lancet regional health. Western Pacific · 2023
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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

6 authors at 5 institutions in 4 countries.

Daniel Tobias MichaeliFifth Department of Medicine, University Hospital Mannheim, Heidelberg University, Mannheim, Germany. danielmichaeli@yahoo.com.ORCID http://orcid.org/0000-0003-2913-1867
Sophia StoychevaDepartment of Health Policy, London School of Economics and Political Science, London, UK.
Simon Mashudu MarcusDepartment of Health Policy, London School of Economics and Political Science, London, UK.
Wenjia ZhangDepartment of Health Policy, London School of Economics and Political Science, London, UK.
Julia Caroline Michaeli *Fifth Department of Medicine, University Hospital Mannheim, Heidelberg University, Mannheim, Germany.ORCID http://orcid.org/0000-0001-6484-7161
Thomas Michaeli *Fifth Department of Medicine, University Hospital Mannheim, Heidelberg University, Mannheim, Germany.ORCID http://orcid.org/0000-0003-0293-9401
Heidelberg University · DEAsklepios Klinik Altona · DEGerman Cancer Research Center · DEPfizer (United States) · USUniversity of the Witwatersrand · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesIn South Africa, the prevalence of human papillomavirus (HPV) and associated diseases, such as cervical cancer and genital warts, is among the highest in the world. This study evaluates the cost-effectiveness of bivalent, quadrivalent, and nonavalent HPV vaccination for 9- to 14-year-old girls from the South African healthcare system perspective.

methodsA Markov model portraying the natural HPV disease progression from high-risk infection to cervical intraepithelial neoplasia (CIN) I, CIN II/III, or cervical cancer and from low-risk infection to genital warts was built. Transition probability, utility, and efficacy data were sourced from peer-reviewed literature. Vaccination costs were calculated based on the World Health Organization (WHO) guidelines. The model was populated with a cohort of 520,000 9-year-old girls to calculate incremental cost-effectiveness ratios (ICER) in South African Rand (R) per quality-adjusted life-years (QALYs) gained for each vaccination strategy.

resultsAll HPV vaccination strategies dominate the no vaccine strategy. Compared with the bivalent vaccine, the nonavalent strategy increases QALYs by 0.14 and costs by R1793 (ICER: R13,013 per QALY) per person, while the quadrivalent vaccination provides -0.02 incremental QALYs and R1748 costs (ICER: -R116,397 per QALY). Consequently, at the South African willingness-to-pay threshold of R23,630 per QALY, nonavalent vaccination is the preferred strategy, with a probability of 90.2%. Scenario analysis demonstrated that results are influenced by vaccine coverage, efficacy, and duration of efficacy.

conclusionsThe introduction of nonavalent for bivalent HPV vaccination is a cost-effective intervention in South Africa. HPV vaccination should be part of a multifaceted public health strategy entailing screening, condoms, and education of all stakeholders to reduce the significant burden of sexual transmitted diseases in South Africa. Sex-neutral and catch-up vaccinations are subjects for further research.

Indexed as

Condylomata AcuminataPapillomavirus InfectionsPapillomavirus VaccinesUterine Cervical NeoplasmsAdolescentChildCost-Benefit AnalysisFemaleHumansPapillomaviridaeQuality-Adjusted Life YearsSouth AfricaVaccinationPapillomavirus Vaccines

Identifiers

PMID35294726
PMCPMC8989937
OpenAlexW4220709447

What OpenQuestion holds

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LicenceCC BY-NC
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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.