ArticlePediatrics2006
Asthma symptoms among adolescents who attend public schools that are located near confined swine feeding operations.
Article in Pediatrics, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 6 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
40 citing papers in PubMed, 6 syntheses or guidelines pooled it.
- 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
- Association of distance to swine concentrated animal feeding operations with immune-mediated diseases: An exploratory gene-environment study.Environment international · 2023Pooled it
- Industrial odour pollution and human health: a systematic review and meta-analysis.Environmental health : a global access science source · 2021Pooled it
- Updated systematic review: associations between proximity to animal feeding operations and health of individuals in nearby communities.Systematic reviews · 2017Pooled it
- The association between proximity to animal feeding operations and community health: a systematic review.PloS one · 2010Pooled it
- Density of animal feeding operations, including concentrated animal feeding operations (CAFOs), and cancer incidence: A county-level ecological study across three U.S. states.Environmental research · 2026Article
- Associations between acquired antimicrobial resistance genes in the upper respiratory tract and livestock farm exposures: a case-control study in COPD and non-COPD individuals.The Journal of antimicrobial chemotherapy · 2024Article
- 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
- Low level exposure to hydrogen sulfide: a review of emissions, community exposure, health effects, and exposure guidelines.Critical reviews in toxicology · 2023Review
- Poultry Concentrated Animal-Feeding Operations on the Eastern Shore, Virginia, and Geospatial Associations with Adverse Birth Outcomes.Healthcare (Basel, Switzerland) · 2022Article
- Exposure to concentrated animal feeding operations (CAFOs) and risk of mortality in North Carolina, USA.The Science of the total environment · 2021Article
- Uterine Cancer Mortality in White and African American Females in Southeastern North Carolina.Journal of environmental and public health · 2020Article
- Estimated time-varying exposures to air emissions from animal feeding operations and childhood asthma.International journal of hygiene and environmental health · 2020Article
- Spatial Variation of Endotoxin Concentrations Measured in Ambient PMEnvironmental health perspectives · 2018Article
- Early-life farm exposures and adult asthma and atopy in the Agricultural Lung Health Study.The Journal of allergy and clinical immunology · 2017Article
- Proximity to Industrial Food Animal Production and Asthma Exacerbations in Pennsylvania, 2005-2012.International journal of environmental research and public health · 2017Article
- Hydrogen sulfide concentrations at three middle schools near industrial livestock facilities.Journal of exposure science & environmental epidemiology · 2017Article
- Integrating remote sensing with nutrient management plans to calculate nitrogen parameters for swine CAFOs at the sprayfield and sub-watershed scales.The Science of the total environment · 2017Article
- Exploration of the effects of classroom humidity levels on teachers' respiratory symptoms.International archives of occupational and environmental health · 2016Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
objectivesLittle is known about the health effects of living in close proximity to industrial swine operations. We assessed the relationship between estimated exposure to airborne effluent from confined swine feeding operations and asthma symptoms among adolescents who were aged 12 to 14 years.
methodsDuring the 1999-2000 school year, 58169 adolescents in North Carolina answered questions about their respiratory symptoms, allergies, medications, socioeconomic status, and household environments. To estimate the extent to which these students may have been exposed during the school day to air pollution from confined swine feeding operations, we used publicly available data about schools (n = 265) and swine operations (n = 2343) to generate estimates of exposure for each public school. Prevalence ratios and 95% confidence intervals for wheezing within the past year were estimated using random-intercepts binary regression models, adjusting for potential confounders, including age, race, socioeconomic status, smoking, school exposures, and household exposures.
resultsThe prevalence of wheezing during the past year was slightly higher at schools that were estimated to be exposed to airborne effluent from confined swine feeding operations. For students who reported allergies, the prevalence of wheezing within the past year was 5% higher at schools that were located within 3 miles of an operation relative to those beyond 3 miles and 24% higher at schools in which livestock odor was noticeable indoors twice per month or more relative to those with no odor.
conclusionsEstimated exposure to airborne pollution from confined swine feeding operations is associated with adolescents' wheezing symptoms.
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