Agricultural Exposures and Breast Cancer Among Latina in the San Joaquin Valley of California.

Mills, Paul K; Dodge, Jennifer L; Bush, Jason; Thompson, Yesenia; Shah, Purvi · J Occup Environ Med · 2019

case_control · Level III

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Abstract

The aim of this study was to assess the role of agricultural work, pesticide exposure, and age at first farm labor exposure in breast cancer (BC) risk among Hispanic women in Central California. A BC case control study was conducted. Latina BC cases were identified through the California Cancer Registry and controls were recruited. Both cases and controls completed a detailed questionnaire. Pesticide exposure data were obtained by linking the crops, work locations, and dates worked in specific farm jobs with the California Department of Pesticide Regulation (DPR) Pesticide Use Reports (PUR). Chemicals associated with BC risk included organophosphates, organochlorines, and a phthalimide, Captan. Age at first work in farm labor was younger in cases than controls (P = 0.03). Agricultural work may be associated with the increased BC risk in female Hispanic farm workers.

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