ArticleJournal of exposure science & environmental epidemiology2017
A principal factor analysis to characterize agricultural exposures among Nebraska veterans.
Article in Journal of exposure science & environmental epidemiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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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.
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Who cites it
8 citing papers in PubMed.
- Relationships of serum CC16 levels with smoking status and lung function in COPD.Respiratory research · 2022Article
- Geographical Distribution and Pattern of Pesticides in Danish Drinking Water 2002-2018: Reducing Data Complexity.International journal of environmental research and public health · 2022Article
- Fatty Acids, Amphiregulin Production, and Lung Function in a Cohort of Midwestern Veterans.Frontiers in rehabilitation sciences · 2022Article
- PERTURBED FACTOR ANALYSIS: ACCOUNTING FOR GROUP DIFFERENCES IN EXPOSURE PROFILES.The annals of applied statistics · 2021Article
- Insufficient zinc intake enhances lung inflammation in response to agricultural organic dust exposure.The Journal of nutritional biochemistry · 2019Article
- Relationship of systemic IL-10 levels with proinflammatory cytokine responsiveness and lung function in agriculture workers.Respiratory research · 2018Article
- Article
- Epistatic effect of TLR-1, -6 and -10 polymorphisms on organic dust-mediated cytokine response.Genes and immunity · 2017Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
Agricultural workers are at an increased risk of developing chronic respiratory disorders. Accurate estimation of long-term agricultural exposures based on questionnaires has been used to improve the validity of epidemiologic investigations and subsequent evaluation of the association between agricultural exposures and chronic diseases. Our aim was to use principal factor analysis (PFA) to distill exposure data into essential variables characterizing long-term agricultural exposures. This is a cross-sectional study of veterans between the ages of 40 and 80 years and who worked on a farm for ≥2 years. Participant characteristics were: 98.1% were white males with a mean age 65±8 (SD) years and 39.8% had chronic obstructive pulmonary disease. The final model included four factors and explained 16.6% of the variance in the exposure data. Factor 1 was a heterogeneous factor; however, Factor 2 was exclusively composed of exposure to livestock such as hogs, dairy and poultry. Factor 3 included exposures from jobs on or off the farm such as wood dust, mineral dust, asbestos and spray paint. Crop exposure loaded exclusively in Factor 4 and included lifetime hours of exposure and maximum number of acres farmed in the participants' lifetime. The factors in the final model were interpretable and consistent with farming practices.
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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.