Prenatal DDT exposure tied to nearly four-fold increase in breast cancer risk

Women who were exposed to higher levels of the pesticide DDT in utero were nearly four times more likely to be diagnosed with breast cancer as adults than women who were exposed to lower levels before birth, according to a new study published in the Endocrine Society's Journal of Clinical Endocrinology and Metabolism (JCEM). A more estrogenic form of DDT that is found in commercial DDT, o,p'-DDT, was largely responsible for this finding.

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