Studies link occupational exposures to preterm delivery, birth defects

A recent study suggests that pregnant veterinarians have a higher risk for preterm delivery if they work long hours or perform surgery in the absence of a system for scavenging waste anesthetic gases. Another study indicates that occupational exposure to radiation or pesticides may increase the risk of birth defects.

The studies appeared in the May issues of the journal Obstetrics and Gynecology and the Journal of Occupational and Environmental Medicine, respectively. They are part of a series of studies analyzing data from a survey of veterinarians who graduated from Australian schools between 1960 and 2000. Previous analysis of the data indicated that pregnant Australian veterinarians with occupational exposure to anesthetic gases, radiation, or pesticides may have twice the risk of miscarriage (see JAVMA, May 15, 2008, page 1445).

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