Evidence map›Paper›PMID 33434195›Full record

ArticlePloS one2021

Feasibility and performance of the fecal immunochemical test (FIT) for average-risk colorectal cancer screening in Nigeria.

Gregory C Knapp, Olusegun Alatise, Bolatito Olopade, Marguerite Samson, Olalekan Olasehinde, Funmilola Wuraola, Oluwole O Odujoko, Akinwunmi O Komolafe, Olujide O Arije, Philip E Castle and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 22% 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

9 citing papers in PubMed, 14 citations in OpenAlex.

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  9. A New Biomarker of Fecal Bacteria for Non-Invasive Diagnosis of Colorectal Cancer.Frontiers in cellular and infection microbiology · 2021
    Article
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

13 authors at 3 institutions in 2 countries.

Gregory C KnappDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America.ORCID 0000-0002-9305-1709
Olusegun AlatiseDepartment of Surgery, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria.
Bolatito OlopadeDepartment of Medical Microbiology and Parasitology, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria.
Marguerite SamsonDepartment of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America.
Olalekan OlasehindeDepartment of Surgery, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria.
Funmilola WuraolaDepartment of Surgery, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria.
Oluwole O OdujokoDepartment of Morbid Anatomy and Forensic Medicine, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria.
Akinwunmi O KomolafeDepartment of Morbid Anatomy and Forensic Medicine, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria.
Olujide O ArijeInstitute of Public Health, Obafemi Awolowo University, Ile-Ife, Nigeria.ORCID 0000-0001-5192-3698
Philip E CastleDepartment of Epidemiology and Public Health, Albert Einstein College of Medicine, Bronx, New York, United States of America.
J Joshua SmithDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America.
Martin R WeiserDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America.
T Peter KinghamDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, United States of America.
Obafemi Awolowo University · NGMemorial Sloan Kettering Cancer Center · USAlbert Einstein College of Medicine · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Hongbiao Carl Lekaye · 1985 to 2026
$347.4M
NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

introductionThere is a paucity of prospective data on the performance of the fecal immunochemical test (FIT) for colorectal cancer (CRC) screening in sub-Saharan Africa. The aim of this exploratory analysis was to evaluate the feasibility and performance of FIT in Nigeria.

methodsThis was a prospective, single-arm study. A convenience sample of asymptomatic, average-risk individuals between 40-75 years of age were enrolled at Obafemi Awolowo University Teaching Hospital. Study participants returned in 48 hours with a specimen for ova and parasite (O&P) and qualitative FIT (50ug/g) testing. Participants with a positive FIT had follow-up colonoscopy and those with intestinal parasites were provided treatment.

resultsBetween May-June 2019, 379 individuals enrolled with a median age of 51 years (IQR 46-58). In total, 87.6% (n = 332) returned for FIT testing. FIT positivity was 20.5% (95% CI = 16.3%-25.2%). Sixty-one (89.7%) of participants with a positive FIT had a follow-up colonoscopy (n = 61), of whom 9.8% (95%CI:3.7-20.2%) had an adenoma and 4.9% (95%CI:1.0-13.7%) had advanced adenomas. Presence of intestinal parasites was inversely related to FIT positivity (6.5% with vs. 21.1% without parasites, p = 0.05). Eighty-two percent of participants found the FIT easy to use and 100% would recommend the test to eligible family or friends if available.

conclusionsAsymptomatic, FIT-based CRC screening was feasible and well tolerated in this exploratory analysis. However, the high FIT positivity and low positive predictive value for advanced neoplasia raises concerns about its practicality and cost effectiveness in a low-resource setting such as Nigeria.

Indexed as

Early Detection of CancerAdenomaAgedAnimalsColorectal NeoplasmsEndoscopyFeasibility StudiesFecesFemaleHumansImmunochemistryMaleMiddle AgedNigeriaParasitesRisk Factors

Identifiers

PMID33434195
PMCPMC7802943
OpenAlexW3120617426

What OpenQuestion holds

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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.