Evidence map›Paper›PMID 26142020›Full record

SynthesisBMJ (Clinical research ed.)2015

Performance of alternative strategies for primary cervical cancer screening in sub-Saharan Africa: systematic review and meta-analysis of diagnostic test accuracy studies.

Joël Fokom-Domgue, Christophe Combescure, Victoire Fokom-Defo, Pierre Marie Tebeu, Pierre Vassilakos, André Pascal Kengne, Patrick Petignat

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMJ (Clinical research ed.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed, 6 pooled it
6.3field-weighted citation impact, top 3% 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

62 citing papers in PubMed, 6 syntheses or guidelines pooled it, 138 citations in OpenAlex.

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2 more citing papers are in PubMed but not listed here.

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

7 authors at 5 institutions in 3 countries.

Joël Fokom-DomgueDepartment of Gynecology and Obstetrics, Faculty of Medicine and Biomedical Sciences, University of Yaoundé, Yaoundé, Cameroon Division of Gynecology, Department of Gynecology and Obstetrics, Geneva University Hospitals, 1211 Geneva 14, Switzerland fokom.domgue@gmail.com.
Christophe CombescureDivision of Clinical Epidemiology, Geneva University Hospitals, Geneva, Switzerland.
Victoire Fokom-DefoDivision of Infectious and Chronic Diseases, Department of Internal Medicine, Yaoundé Central Hospital, Yaoundé, Cameroon.
Pierre Marie TebeuDepartment of Gynecology and Obstetrics, Faculty of Medicine and Biomedical Sciences, University of Yaoundé, Yaoundé, Cameroon.
Pierre VassilakosGeneva Foundation for Medical Education and Research, Geneva, Switzerland.
André Pascal KengneSouth African Medical Research Council and University of Cape Town, Cape Town, South Africa.
Patrick PetignatDivision of Gynecology, Department of Gynecology and Obstetrics, Geneva University Hospitals, 1211 Geneva 14, Switzerland.
Université de Yaoundé I · CMUniversity Hospital of Geneva · CHCentral Hospital of Yaoundé · CMFoundation for laboratory medicine · CHUniversity of Cape Town · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo assess and compare the accuracy of visual inspection with acetic acid (VIA), visual inspection with Lugol's iodine (VILI), and human papillomavirus (HPV) testing as alternative standalone methods for primary cervical cancer screening in sub-Saharan Africa.

designSystematic review and meta-analysis of diagnostic test accuracy studies. DATA SOURCES: Systematic searches of multiple databases including Medline, Embase, and Scopus for studies published between January 1994 and June 2014. REVIEW

methodsInclusion criteria for studies were: alternative methods to cytology used as a standalone test for primary screening; study population not at particular risk of cervical cancer (excluding studies focusing on HIV positive women or women with gynaecological symptoms); women screened by nurses; reference test (colposcopy and directed biopsies) performed at least in women with positive screening results. Two reviewers independently screened studies for eligibility and extracted data for inclusion, and evaluated study quality using the quality assessment of diagnostic accuracy studies 2 (QUADAS-2) checklist. Primary outcomes were absolute accuracy measures (sensitivity and specificity) of screening tests to detect cervical intraepithelial neoplasia grade 2 or worse (CIN2+).

results15 studies of moderate quality were included (n=61,381 for VIA, n=46,435 for VILI, n=11,322 for HPV testing). Prevalence of CIN2+ did not vary by screening test and ranged from 2.3% (95% confidence interval 1.5% to 3.3%) in VILI studies to 4.9% (2.7% to 7.8%) in HPV testing studies. Positivity rates of VILI, VIA, and HPV testing were 16.5% (9.8% to 24.7%), 16.8% (11.0% to 23.6%), and 25.8% (17.4% to 35.3%), respectively. Pooled sensitivity was higher for VILI (95.1%; 90.1% to 97.7%) than VIA (82.4%; 76.3% to 87.3%) in studies where the reference test was performed in all women (P<0.001). Pooled specificity of VILI and VIA were similar (87.2% (78.1% to 92.8%) v 87.4% (77.1% to 93.4%); P=0.85). Pooled sensitivity and specificity were similar for HPV testing versus VIA (both P ≥ 0.23) and versus VILI (both P ≥ 0.16). Accuracy of VIA and VILI increased with sample size and time period.

conclusionsFor primary screening of cervical cancer in sub-Saharan Africa, VILI is a simple and affordable alternative to cytology that demonstrates higher sensitivity than VIA. Implementation studies are needed to assess the effect of these screening strategies on the incidence and outcomes of cervical cancer in the region.

Indexed as

Acetic AcidColoring AgentsIodidesAdultAfrica South of the SaharaCost-Benefit AnalysisEarly Detection of CancerFemaleHumansMass ScreeningPapillomavirus InfectionsPredictive Value of TestsSensitivity and SpecificityUterine Cervical DysplasiaUterine Cervical NeoplasmsVaginal SmearsAcetic AcidColoring AgentsIodidesLugol's solution

Identifiers

PMID26142020
PMCPMC4490835
OpenAlexW2150798840

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.