Agricultural dust exposure and respiratory symptoms among California farm operators

Marc B Schenker, Jeffrey A. Farrar, Diane C. Mitchell, Rocsieiie S. Green, Steven J. Samuels, Robert J. Lawson, Stephen A Mccurdy

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Objective: To study whether dust exposure in California agriculture is a risk factor for respiratory symptoms. Methods: A population-based survey of 1947 California farmers collected respiratory symptoms, occupational and personal exposures. Associations between dust and respiratory symptoms were assessed by logistic regression models. Results: The prevalence of persistent wheeze was 8.6%, chronic bronchitis 3.8%, chronic cough 4.2%, and asthma 7.8%. Persistent wheeze was independently associated with dust in a dose-response fashion odds ratio, 1.2 (95% confidence interval [CI] = 0.8-2.0) and 1.8 (95% CI = 1.1-3.2) for low and high time in dust. A borderline significant association between chronic bronchitis and dust exposure was found. Asthma was associated with keeping livestock, but not with dust exposure. Conclusions: Occupational dust exposure among California farmers, only one third of whom tended animals, was independently associated with chronic respiratory symptoms.

Original languageEnglish (US)
Pages (from-to)1157-1166
Number of pages10
JournalJournal of Occupational and Environmental Medicine
Volume47
Issue number11
DOIs
StatePublished - Nov 2005

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Dust
Chronic Bronchitis
Occupational Exposure
Asthma
Logistic Models
Confidence Intervals
Livestock
Farms
Agriculture
Cough
Odds Ratio
Population

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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Agricultural dust exposure and respiratory symptoms among California farm operators. / Schenker, Marc B; Farrar, Jeffrey A.; Mitchell, Diane C.; Green, Rocsieiie S.; Samuels, Steven J.; Lawson, Robert J.; Mccurdy, Stephen A.

In: Journal of Occupational and Environmental Medicine, Vol. 47, No. 11, 11.2005, p. 1157-1166.

Research output: Contribution to journalArticle

Schenker, Marc B ; Farrar, Jeffrey A. ; Mitchell, Diane C. ; Green, Rocsieiie S. ; Samuels, Steven J. ; Lawson, Robert J. ; Mccurdy, Stephen A. / Agricultural dust exposure and respiratory symptoms among California farm operators. In: Journal of Occupational and Environmental Medicine. 2005 ; Vol. 47, No. 11. pp. 1157-1166.
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