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Health Agencies Update
December 26, 2012

Pollution May Delay Pregnancy

JAMA. 2012;308(24):2557. doi:10.1001/jama.2012.156131

Couples with higher levels of some environmental pollutants in their blood were less likely to conceive, according to a study funded by the Eunice Kennedy Shriver National Institute of Child Health and Human Development. Many environmental contaminants have effects on human hormones.

To examine the relationship between selected environmental pollutants and the time it takes a couple to achieve pregnancy, a team of researchers studied 501 couples who were trying to conceive (Buck Louis GM et al. Environ Health Perspect. doi: 10.1289/ehp.1205301 [published online November 14, 2012]). The couples were followed prospectively for 12 months or until a pregnancy was confirmed.

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