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NIH study links high levels of cadmium, lead in blood to pregnancy delay
Date:2/8/2012

, which means that the probability of pregnancy was reduced by 22 percent with each increase in the level of cadmium. Males' blood lead exposure also was associated with a ratio below 1 (0.85) with increasing levels, or about a 15 percent reduction in the probability of pregnancy for each increase in the level of blood lead concentrations.

The researchers also calculated a fecundability odds ratio based on both partners' combined lead, cadmium and mercury concentrations. The researchers found a ratio of 0.82 for male lead exposure, representing approximately a 28 percent reduction in the probability of pregnancy for each menstrual cycle, with increasing male blood lead concentration.

"The findings highlight the importance of assessing couples' exposure jointly, in a single, combined measure," Dr. Buck Louis said. "Males matter, because couples' chances of becoming pregnant each cycle were reduced with increasing blood lead concentrations in men."


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Contact: Robert Bock or Marianne Glass Miller
bockr@mail.nih.gov
301-496-5134
NIH/National Institute of Child Health and Human Development
Source:Eurekalert

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