SynthesisSystematic reviews2017
Updated systematic review: associations between proximity to animal feeding operations and health of individuals in nearby communities.
Synthesis in Systematic reviews, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled 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.
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.
Who cites it
19 citing papers in PubMed, 3 syntheses or guidelines pooled it, 38 citations in OpenAlex.
- Reporting of structural population assumptions in prevalence-based studies of animal feeding operations and community health.Frontiers in public health · 2026Pooled it
- A systematic review of animal feeding operations including concentrated animal feeding operations (CAFOs) for exposure, health outcomes, and environmental justice.Environmental research · 2024Pooled it
- Industrial odour pollution and human health: a systematic review and meta-analysis.Environmental health : a global access science source · 2021Pooled it
- Disparities in exposure to concentrated animal feeding operations (CAFOs) and other animal feeding operations across multiple states in USA.Journal of exposure science & environmental epidemiology · 2026Article
- Health disparities associated with exposure to animal feeding operations, including concentrated animal feeding operations (CAFOs), in North Carolina, Pennsylvania, and Virginia, USA.Environmental research letters : ERL [Web site] · 2025Article
- Article
- Local and Global Public Health and Emissions from Concentrated Animal Feeding Operations in the USA: A Scoping Review.International journal of environmental research and public health · 2024Article
- No Influence of PreviousJournal of clinical medicine · 2022Article
- Exposure to concentrated animal feeding operations (CAFOs) and risk of mortality in North Carolina, USA.The Science of the total environment · 2021Article
- Precarious Essential Work, Immigrant Dairy Farmworkers, and Occupational Health Experiences in Vermont.International journal of environmental research and public health · 2021Article
- Distribution of environmental justice metrics for exposure to CAFOs in North Carolina, USA.Environmental research · 2021Article
- One Health in hospitals: how understanding the dynamics of people, animals, and the hospital built-environment can be used to better inform interventions for antimicrobial-resistant gram-positive infections.Antimicrobial resistance and infection control · 2020Review
- Intensive Livestock Farming and Residential Health: Experts' Views.International journal of environmental research and public health · 2019Article
- Bioaerosols Play a Major Role in the Nasopharyngeal Microbiota Content in Agricultural Environment.International journal of environmental research and public health · 2019Article
- Attitude toward livestock farming does not influence the earlier observed association between proximity to goat farms and self-reported pneumonia.Environmental epidemiology (Philadelphia, Pa.) · 2019Article
- "Ag-Gag" Laws: Evolution, Resurgence, and Public Health Implications.New solutions : a journal of environmental and occupational health policy : NS · 2019Article
- Authors' response to comments from Nachman KE et al.Systematic reviews · 2017Article
- O'Connor et al. systematic review regarding animal feeding operations and public health: critical flaws may compromise conclusions.Systematic reviews · 2017Article
- Abiotic and Biotic Factors Regulating Inter-Kingdom Engagement between Insects and Microbe Activity on Vertebrate Remains.Insects · 2017Review
Corrections and comments
- Commented on by
Authors and funding
10 authors at 7 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe objective of this review was to update a systematic review of associations between living near an animal feeding operation (AFO) and human health.
methodsThe MEDLINE® and MEDLINE® In-Process, Centre for Agricultural Biosciences Abstracts, and Science Citation Index databases were searched. Reference lists of included articles were hand-searched. Eligible studies reported exposure to an AFO and an individual-level human health outcome. Two reviewers performed study selection and data extraction.
resultsThe search returned 3702 citations. Sixteen articles consisting of 10 study populations were included in the analysis. The health outcomes were lower and upper respiratory tracts, MRSA, other infectious disease, neurological, psychological, dermatological, otologic, ocular, gastrointestinal, stress and mood, and other non-infectious health outcomes. Most studies were observational and used prevalence measures of outcome. An association between Q fever risk and proximity to goat production was reported. Other associations were unclear. Risk of bias was serious or critical for most exposure-outcome associations. Multiplicity (i.e., a large number of potentially correlated outcomes and exposures assessed on the same study subjects) was common in the evidence base.
conclusionsFew studies reported an association between surrogate clinical outcomes and AFO proximity for respiratory tract-related outcomes. There were no consistent dose-response relationships between surrogate clinical outcome and AFO proximity. A new finding was that Q fever in goats is likely associated with an increased Q fever risk in community members. The review results for the non-respiratory health outcomes were inconclusive because only a small number of studies were available or the between-study results were inconsistent. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42014010521.
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Registered trials
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.