Evidence map›Paper›PMID 30300838›Full record

ArticleCancer epidemiology2018

Cancer epidemiology fieldwork in a resource-limited setting: Experience from the western Kenya ESCCAPE esophageal cancer case-control pilot study.

Diana Menya, Margaret Oduor, Nicholas Kigen, Stephen K Maina, Fatma Some, Caroline Kibosia, David Chumba, Florence A Murgor, Rafael S Carel, Daniel R S Middleton and 3 more

Abstract read
In one paragraph

Article in Cancer epidemiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. 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.

Diana MenyaSchool of Public Health, College of Health Sciences, Moi University, Eldoret, Kenya. Electronic address: dianamenya@gmail.com.
Margaret OduorUniversity Health Services, University of Eldoret, Eldoret, Kenya.
Nicholas KigenAcademic Model Providing Access to Healthcare (AMPATH), Eldoret, Kenya.
Stephen K MainaAcademic Model Providing Access to Healthcare (AMPATH), Eldoret, Kenya.
Fatma SomeSchool of Medicine, College of Health Sciences, Moi University, Eldoret, Kenya.
Caroline KibosiaSchool of Dentistry, College of Health Sciences, Moi University, Eldoret, Kenya.
David ChumbaSchool of Medicine, College of Health Sciences, Moi University, Eldoret, Kenya.
Florence A MurgorNational Affirmative Action Fund, Ministry of Gender, Government of Kenya, Nairobi, Kenya.
Rafael S CarelSchool of Public Health, University of Haifa, Haifa, Israel.
Daniel R S MiddletonSection of Environment and Radiation, International Agency for Research on Cancer, Lyon, France.
Behnoush Abebi-ArdekaniSection of Genetics, International Agency for Research on Cancer, Lyon, France.
Joachim SchüzSection of Environment and Radiation, International Agency for Research on Cancer, Lyon, France.
Valerie A McCormackSection of Environment and Radiation, International Agency for Research on Cancer, Lyon, France.

Funding

Esophageal cancer in West KenyaR21CA191965 · NCI · INTERNATIONAL AGENCY FOR RES ON CANCER · PI MCCORMACK, VALERIE · 2015 to 2016
$256k
NCI NIH HHS R21 CA191965World Health Organization 001
6 · The paper itself

Abstract

backgroundCase-control studies remain an important study design for aetiologic research on cancer, particularly when cohorts are not available. In addition to the potential biases inherent in this design, conducting fieldwork in settings with weak health care and information systems for cancer, such as in sub Saharan Africa, confer additional challenges which we present here with the aim to share experience to guide future studies.

methodsWe undertook a hospital-based case-control study of squamous cell esophageal cancer at the Moi Teaching and Referral Hospital in Eldoret, West Kenya. Cases were recruited at endoscopy and controls from hospital wards, age and gender frequency-matched to cases. Urine, toenails, blood and tumour biopsy were collected and a questionnaire administered.

resultsDuring this pilot phase, 143 cases and 155 controls were successfully recruited. Complete questionnaire data was obtained through e-data collection. Biospecimen collection was possible with support of an already existing equipped laboratory. We introduce changes made in the main study phase, including on expansion of the control groups to allow to consideration of selection bias.

conclusionsExtra attention and funding to train and monitor data quality and biospecimen collection and collaboration of a large group held together by strong leadership are essential. We recommend studies based on regional treatment centres with their more defined catchment areas rather than in the capital cities as referral routes in multi-level health care systems are severely attrition prone.

Indexed as

Case-Control StudiesEpidemiologic MethodsDeveloping CountriesEsophageal NeoplasmsEsophageal Squamous Cell CarcinomaFemaleHumansKenyaMalePilot ProjectsResearch DesignSurveys and QuestionnairesCase-control studyEsophageal cancerFieldworkLMICs

Identifiers

PMID30300838
PMCPMC6289835

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.