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J Expo Sci Environ Epidemiol. 2015 Nov-Dec;25(6):608-15. doi: 10.1038/jes.2015.39. Epub 2015 Jun 3.

Home-based community health worker intervention to reduce pesticide exposures to farmworkers' children: A randomized-controlled trial.

Author information

1
University of Oklahoma Health Sciences Center College of Public Health, Oklahoma City, OK, USA.
2
Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, CA, USA.
3
Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS), Clínica de Salud del Valle de Salinas, Salinas, CA, USA.
4
California Rural Legal Assistance, Salinas, CA, USA.
5
Battelle Memorial Institute, Columbus, OH, USA.
6
Emory University, School of Public Health, Atlanta, Georgia, USA.

Abstract

We conducted a randomized-controlled trial of a home-based intervention to reduce pesticide exposures to farmworkers' children in Monterey County, California (n=116 families). The intervention consisted of three home-based educational sessions delivered by community health workers in Spanish. Measurements of organophosphate (OP) insecticide metabolites in child urine (n=106) and pesticides in home floor wipes (n=103) were collected before and after the intervention. Median child urinary dialkyl phosphate (DAP) metabolite levels were slightly lower among the intervention group children at follow-up compared with baseline, albeit nonsignificantly. DAP metabolite levels in the control group children were markedly higher at follow-up compared with baseline. In adjusted models, intervention participation was associated with a 51% decrease in total DAP metabolite levels. Carbaryl, chlorpyrifos, cypermethrin, dacthal, diazinon, malathion, and trans-permethrin were commonly detected in the floor wipes. In adjusted models, intervention participation was significantly associated with a 37% decrease in trans-permethrin floor wipe levels in homes, but not OP or other agricultural pesticides. In summary, intervention group children had slightly reduced pesticide exposures, whereas child exposures were higher among the control group. Additional intervention studies evaluating methods to reduce pesticide exposures to farmworker families and children are needed.

PMID:
26036987
PMCID:
PMC6380488
DOI:
10.1038/jes.2015.39
[Indexed for MEDLINE]
Free PMC Article

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