Evidence map›Paper›PMID 23547703›Full record

ArticleSouth African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde2013

Gastric adenocarcinoma in Zambia: a case-control study of HIV, lifestyle risk factors, and biomarkers of pathogenesis.

V Kayamba, A W Asombang, V Mudenda, M M Lisulo, E Sinkala, S Mwanamakondo, I Mweemba, P Kelly

Open access · goldAbstract read
In one paragraph

Article in South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

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  12. Serum antibodies to selectedMalawi medical journal : the journal of Medical Association of Malawi · 2022
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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

8 authors at 3 institutions in 3 countries.

V KayambaTropical Gastroenterology and Nutrition Project, Department of Medicine, University of Zambia School of Medicine, Lusaka, Zambia. viojole@yahoo.com
A W Asombang
V Mudenda
M M Lisulo
E Sinkala
S Mwanamakondo
I Mweemba
P Kelly
University of Zambia · ZMTropical Gastroenterology & Nutrition group · ZMUniversity Teaching Hospital · ZM

Funding

Fogarty International Clinical Research Scholars Support Center @ Vanderbilt-AAMCR24TW007988 · FIC · VANDERBILT UNIVERSITY · PI VERMUND, STEN H. · 2007 to 2011
$27.6M
FIC NIH HHS R24 TW007988FIC NIH HHS R24TW007988
6 · The paper itself

Abstract

backgroundGastric cancer is a leading cause of cancer deaths worldwide but there are few data from Africa. We recently observed a trend towards diagnosis in younger patients.

objectiveTo test the hypothesis that HIV might have altered risk factors for acquisition of gastric cancer, in a case-control study in the University Teaching Hospital, Lusaka, Zambia.

methodsPatients (n=52) with confirmed gastric adenocarcinoma and controls (n=94) undergoing endoscopy but with no macroscopic gastric pathology. Established risk factors and HIV status were compared.

resultsHIV status did not differ significantly between cases and controls (odds ratio 1.03; 95% CI 0.2 - 4.3; p=1.00) and seroprevalence in cases was similar to that of the Zambian population. Smoking, regular alcohol intake, and gastric atrophy were all associated with cancer in univariate and multivariate analysis. Helicobacter pylori serology was positive in 84% of patients studied and cagA serology in 66%; neither serological marker was associated with cancer. Atrophy was common in cases (57%) and controls (30%) and associated with both smoking and alcohol use. Intestinal metaplasia was present in 17% of the controls, but was not associated with atrophy.

conclusionsHIV was not associated with gastric cancer and does not explain the apparent younger age distribution. Atrophy was common and was not essential for the development of intestinal metaplasia, suggesting that gastric carcinogenesis in Africa does not always follow the pathway from atrophy to intestinal metaplasia to gastric carcinoma (the so-called Correa pathway).

Indexed as

AdenocarcinomaAdultAlcohol DrinkingAntibodies, BacterialAtrophyBiomarkers, TumorCase-Control StudiesConfidence IntervalsFemaleHelicobacter InfectionsHelicobacter pyloriHIV InfectionsHumansLife StyleMaleMetaplasiaAntibodies, BacterialBiomarkers, Tumor

Identifiers

PMID23547703
PMCPMC3815678
OpenAlexW2151161962

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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.