249885 Improved Pesticide Safety Training and Reduced Pesticide Exposure: Results of a Biomarker Study

Sunday, October 30, 2011

Linda A. McCauley, PhD , School of Nursing, Emory University, Atlanta, GA
Nargess Shadbeh, JD , Farmworker Program, Oregon Law Center, Portland, OR
Juan Muniz, PhD , School of Nursing, University of Pennsylvania, Philadelphia, PA
Melinda Higgins, PhD , School of Nursing, Emory University, Atlanta, GA
Julie Samples, JD , Indigenous Farmworker Project, Oregon Law Center, Hillsboro, OR
In recent years, urinary biomarkers of pesticide metabolites have increasingly been used to describe patterns of exposure occurring in occupational and environmental settings. Few studies have used these biomarkers as effectiveness outcomes in intervention studies aimed to decrease exposure. As part of a community-based participatory research project we recruited 30 nursery workers who reported they spoke an indigenous language and randomly assigned them to a training intervention provided by community promotoras speaking and understanding indigenous languages. Urinary metabolite levels of 5 dialkylphosphates were obtained at baseline and 2-3 weeks post training and compared to 32 indigenous workers who did not receive the specialized training. All of the farmworkers had detectable levels of metabolites at baseline with DMTP and DMP detected in 86% of the samples. At baseline, metabolite levels were significantly correlated with age (r=0.301, p=0.018, n=62), but this correlation was not observed after training. Levels of metabolites decreased at post test for both the intervention and control groups even though the workers reported that pesticide use had increased in the nurseries during that time period. In the intervention group, 65% of the intervention group had lower metabolite levels compared to only 46% in the control group (Chi-square=1.793, df=1, n=49, p=0.181). Other factors potentially influencing results will be discussed including gender, work characteristics, and pesticide safety knowledge level.

Learning Areas:
Administer health education strategies, interventions and programs
Diversity and culture
Environmental health sciences
Occupational health and safety
Public health or related nursing
Public health or related research

Learning Objectives:
- Describe how urinary biomarkers can be used to assess the effect of an educational intervention. - Identify the urinary metabolites used to describe patterns of pesticide exposure in an occupational setting.

Keywords: Community-Based Partnership, Pesticide Exposure

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I have more than 20 years of experience conducting interdisciplinary studies using participatory research models to study pesticide exposures among minority communities. I am currently conducting two studies focused on pesticide exposure in migrant farmworkers.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.