Evidence map›Paper›PMID 36868140›Full record

SynthesisInternational journal of hygiene and environmental health2023

Measurement in the study of human exposure to animal feces: A systematic review and audit.

April M Ballard, Nicholas Laramee, Regine Haardörfer, Matthew C Freeman, Karen Levy, Bethany A Caruso

Abstract readSystematic Review
In one paragraph

Synthesis in International journal of hygiene and environmental health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 2 pooled it
–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

10 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Measurement in the study of human exposure to animal feces: A systematic review and audit.International journal of hygiene and environmental health · 2023
    Pooled it
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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

6 authors.

April M BallardGangarosa Department of Environmental Health, Emory University Rollins School of Public Health, Atlanta, GA, USA. Electronic address: april.ballard@emory.edu.
Nicholas LarameeHubert Department of Global Health, Emory University Rollins School of Public Health, Atlanta, GA, USA.
Regine HaardörferDepartment of Behavioral, Social and Health Education Sciences, Emory University Rollins School of Public Health, Atlanta, GA, USA.
Matthew C FreemanGangarosa Department of Environmental Health, Emory University Rollins School of Public Health, Atlanta, GA, USA.
Karen LevyDepartment of Environmental and Occupational Health Sciences, University of Washington School of Public Health, Seattle, WA, USA.
Bethany A CarusoGangarosa Department of Environmental Health, Emory University Rollins School of Public Health, Atlanta, GA, USA; Hubert Department of Global Health, Emory University Rollins School of Public Health, Atlanta, GA, USA.

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
NIAID NIH HHS R01 AI137679
6 · The paper itself

Abstract

backgroundHuman exposure to animal feces is increasingly recognized as an important transmission route of enteric pathogens. Yet, there are no consistent or standardized approaches to measurement of this exposure, limiting assessment of the human health effects and scope of the issue.

objectiveTo inform and improve approaches to the measurement of human exposure to animal feces, we audited existing measurement in low- and middle-income countries.

methodsWe systematically searched peer-reviewed and gray literature databases for studies with quantitative measures of human exposure to animal feces and we classified measures in two ways. First, using a novel conceptual model, we categorized measures into three 'Exposure Components' identified a priori (i.e., Animal, Environmental, Human Behavioral); one additional Component (Evidence of Exposure) inductively emerged. Second, using the exposure science conceptual framework, we determined where measures fell along the source-to-outcome continuum.

resultsWe identified 1,428 measures across 184 included studies. Although studies overwhelmingly included more than one single-item measure, the majority only captured one Exposure Component. For example, many studies used several single-item measures to capture the same attribute for different animals, all of which were classified as the same Component. Most measures captured information about the source (e.g. animal presence) and contaminant (e.g. animal-sourced pathogens), which are most distal from exposure on the source-to-outcome continuum. DISCUSSION: We found that measurement of human exposure to animal feces is diverse and largely distal from exposure. To facilitate better assessment of the human health effects of exposure and scope of the issue, rigorous and consistent measures are needed. We recommend a list of key factors from the Animal, Environmental, and Human Behavioral Exposure Components to measure. We also propose using the exposure science conceptual framework to identify proximal measurement approaches.

Indexed as

Models, TheoreticalAnimalsFecesHumansEnteropathogensExposure scienceWater, sanitation, and hygieneZoonotic pathogens

Identifiers

PMID36868140
PMCPMC10044406

What OpenQuestion holds

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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.