A Pilot Study Comparing Observational and Questionnaire Surrogate Measures of Pesticide Exposure Among Residents Impacted by the Ecuadorian Flower Industry.

Arch Environ Occup Health 2015 ;70(4):232-40

a Public Health Program, Department of Family and Community Medicine, University of New Mexico , Albuquerque , New Mexico , USA.

Self-reported measures of residential pesticide exposure are commonly used in epidemiological studies, especially when financial and logistical resources are limited. However, self-reporting is prone to misclassification bias. This pilot study assesses the agreement between self-report of residential pesticide exposure with direct observation measures, in an agricultural region of Ecuador, as a cross-validation method in 26 participants (16 rose workers and 10 controls), with percent agreement and kappa statistics calculated. Proximity of homes to nearby flower farms was found to have only fair agreement (kappa =.35). The use of discarded plastics (kappa =.06) and wood (kappa =.13) were found to have little agreement. Results indicate that direct observation or measurement may provide more accurate appraisals of residential exposures, such as proximity to industrial farmland and the use of discarded materials obtained from the flower farms.

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Source
http://www.tandfonline.com/doi/full/10.1080/19338244.2013.87
Publisher Site
http://dx.doi.org/10.1080/19338244.2013.879563DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4363008PMC
September 2015
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References

(Supplied by CrossRef)

Hanke W et al.
Int J Occup Environ Health. 2004

Young JG et al.
Neurotoxicology 2005

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