Evidence map›Paper›PMID 26902228›Full record

ArticleThe American journal of gastroenterology2016

Esophageal Squamous Dysplasia is Common in Asymptomatic Kenyans: A Prospective, Community-Based, Cross-Sectional Study.

Michael M Mwachiro, Stephen L Burgert, Justus Lando, Robert Chepkwony, Collins Bett, Claire Bosire, Christian C Abnet, Jessie Githanga, Wairimu Waweru, Carol A Giffen and 4 more

Abstract read
In one paragraph

Article in The American journal of gastroenterology, 2016. 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
5.3field-weighted citation impact, top 4% 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, 40 citations in OpenAlex.

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  19. International cancer seminars: a focus on esophageal squamous cell carcinoma.Annals of oncology : official journal of the European Society for Medical Oncology · 2017
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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

14 authors at 5 institutions in 2 countries.

Michael M MwachiroTenwek Hospital, Bomet, Kenya.
Stephen L BurgertTenwek Hospital, Bomet, Kenya.
Justus LandoTenwek Hospital, Bomet, Kenya.
Robert ChepkwonyTenwek Hospital, Bomet, Kenya.
Collins BettTenwek Hospital, Bomet, Kenya.
Claire BosireNational Cancer Institute, Bethesda, Maryland, USA.
Christian C AbnetNational Cancer Institute, Bethesda, Maryland, USA.
Jessie GithangaDepartment of Pathology, University of Nairobi, Nairobi, Kenya.
Wairimu WaweruDepartment of Pathology, University of Nairobi, Nairobi, Kenya.
Carol A GiffenInformation Management Services, Calverton, Maryland, USA.
Gwen MurphyNational Cancer Institute, Bethesda, Maryland, USA.
Russell E WhiteTenwek Hospital, Bomet, Kenya.
Mark D TopazianMayo Clinic, Rochester, Minnesota, USA.
Sanford M DawseyNational Cancer Institute, Bethesda, Maryland, USA.
Tenwek Hospital · KENational Cancer Institute · USUniversity of Nairobi · KEInformation Management Services · USMayo Clinic · US

Funding

Upper Gastrointestinal Cancer StudiesZIACP000185 · NCI · DIVISION OF CANCER EPIDEMIOLOGY AND GENETICS · PI ABNET, CHRISTIAN · 2009 to 2025
$25.6M
Intramural NIH HHS ZIA CP000185
6 · The paper itself

Abstract

objectivesEsophageal squamous cell carcinoma (ESCC) is endemic in east Africa and is a leading cause of cancer death among Kenyans. The asymptomatic precursor lesion of ESCC is esophageal squamous dysplasia (ESD). We aimed to determine the prevalence of ESD in asymptomatic adult residents of southwestern Kenya.

methodsIn this prospective, community-based, cross-sectional study, 305 asymptomatic adult residents completed questionnaires and underwent video endoscopy with Lugol's iodine chromoendoscopy and mucosal biopsy for detection of ESD.

resultsStudy procedures were well tolerated, and there were no adverse events. The overall prevalence of ESD was 14.4% (95% confidence interval (CI): 10-19%), including 11.5% with low-grade dysplasia and 2.9% with high-grade dysplasia. The prevalence of ESD was >20% among men aged >50 years and women aged >60 years. Residence location was significantly associated with ESD (Zone A adjusted odds ratio (OR) 2.37, 95% CI: 1.06-5.30 and Zone B adjusted OR 2.72, 95% CI: 1.12-6.57, compared with Zone C). Iodine chromoendoscopy with biopsy of unstained lesions was more sensitive than white-light endoscopy or random mucosal biopsy for detection of ESD and had 67% sensitivity and 70% specificity.

conclusionsESD is common among asymptomatic residents of southwestern Kenya and is especially prevalent in persons aged >50 years and those living in particular local regions. Lugol's iodine chromoendoscopy is necessary for detection of most ESD but has only moderate sensitivity and specificity in this setting. Screening for ESD is warranted in this high-risk population, and endoscopic screening of Kenyans is feasible, safe, and acceptable, but more accurate and less invasive screening tests are needed.

Indexed as

AdultBiopsyCarcinoma, Squamous CellCross-Sectional StudiesEarly Detection of CancerEsophageal NeoplasmsEsophageal Squamous Cell CarcinomaEsophagoscopyEsophagusFemaleHumansIodidesKenyaMaleMiddle AgedPrecancerous ConditionsIodidesLugol's solution

Identifiers

PMID26902228
PMCPMC5753423
OpenAlexW2279017586

What OpenQuestion holds

Textmetadata
LicenceTDM
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.