Evidence map›Paper›PMID 30444557›Full record

ArticleTropical medicine & international health : TM & IH2019

Locals get travellers' diarrhoea too: risk factors for diarrhoeal illness and pathogenic Escherichia coli infection across an urban-rural gradient in Ecuador.

Shanon M Smith, Lorena Montero, Maritza Paez, Estefania Ortega, Eric Hall, Kate Bohnert, Xavier Sanchez, Edison Puebla, Pablo Endara, William Cevallos and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Tropical medicine & international health : TM & IH, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.1field-weighted citation impact, top 19% 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

11 citing papers in PubMed, 18 citations in OpenAlex.

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  7. Distribution of Escherichia coli Pathotypes along an Urban-Rural Gradient in Ecuador.The American journal of tropical medicine and hygiene · 2023
    Article
  8. Population genomics of diarrheagenic Escherichia coli uncovers high connectivity between urban and rural communities in Ecuador.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2023
    Article
  9. Article
  10. Article
  11. Metagenomic Signatures of Gut Infections Caused by DifferentApplied and environmental microbiology · 2019
    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

12 authors at 3 institutions in 2 countries.

Shanon M SmithDepartment of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
Lorena MonteroInstituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador.
Maritza PaezInstituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador.
Estefania OrtegaInstituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador.
Eric HallDepartment of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
Kate BohnertDepartment of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
Xavier SanchezCentro de Biomedicina, Universidad Central del Ecuador, Quito, Ecuador.
Edison PueblaCentro de Biomedicina, Universidad Central del Ecuador, Quito, Ecuador.
Pablo EndaraInstituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador.
William CevallosCentro de Biomedicina, Universidad Central del Ecuador, Quito, Ecuador.
Gabriel TruebaInstituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador.
Karen LevyDepartment of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
Universidad San Francisco de Quito · ECEmory University · USCentral University of Ecuador · EC

Funding

Gut microbiome, enteric infections and child growth across a rurual urban gradientR01AI137679 · NIAID · UNIVERSITY OF WASHINGTON · PI EISENBERG, JOSEPH N. S., LEVY, KAREN · 2018 to 2023
$5.3M
Impacts of Human Movement on Regional Strain Distribution of Diarrheagenic E.coliK01AI103544 · NIAID · EMORY UNIVERSITY · PI LEVY, KAREN · 2013 to 2017
$655k
National Institute for Allergy and Infectious Diseases 1K01AI103544NIAID NIH HHS K01 AI103544NIAID NIH HHS R01 AI137679
6 · The paper itself

Abstract

objectivesDiarrhoea is a common and well-studied cause of illness afflicting international travellers. However, traveller's diarrhoea can also result from travel between high and low disease transmission regions within a country, which is the focus of this study.

methodsWe recruited participants for a case-control study of diarrhoea at four sites along an urban-rural gradient in Northern Ecuador: Quito, Esmeraldas, Borbón and rural communities outside of Borbón. At each of these sites, approximately 100 subjects with diarrhoea (cases) were recruited from Ministry of Health clinics and were age-matched with subjects visiting the same clinics for other complaints (controls).

resultsTravellers to urban destinations had higher risk of diarrhoea and diarrhoeagenic Escherichia coli (DEC) infections. Travel to Quito was associated with diarrhoea (aOR = 2.01, 95% CI = 1.10-3.68) and travel to Guayaquil (another urban centre in Ecuador) was associated with Diffuse Adherent E. coli infection (OR = 2.09, 95% CI = 1.01-4.33). Compared to those not travelling, urban origins were also associated with greater risk of diarrhoea in Esmeraldas (aOR = 2.28, 95% CI = 1.20-4.41), and with higher risk of diarrhoeagenic E. coli infections in Quito (aOR = 2.61, 95% CI = 1.16-5.86), with >50% of travel from Quito and Esmeraldas specified to another urban destination.

conclusionsThis study suggests that individuals travelling from lower-transmission regions (rural areas) to higher transmission regions (urban centres) within a single country are at a greater risk of acquiring a diarrhoea-related illness. Investments to improve water, sanitation and hygiene conditions in urban areas could have impacts on outlying rural areas within a given country.

Indexed as

TravelAdolescentAdultAgedAged, 80 and overAge DistributionCase-Control StudiesChildChild, PreschoolDiarrheaEcuadorEscherichia coliEscherichia coli InfectionsFecesFemaleHumansdiarrhéediarrhoeadiarrhoeagenic E. colidiffusely adherent E. coliE. coli à adhérence diffuseE. coli diarrhéiqueEcuadorEquateurruraltravelurbainurbanvoyage

Identifiers

PMID30444557
PMCPMC7476357
OpenAlexW2901953527

What OpenQuestion holds

Textmetadata
LicenceTDM
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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.