Mortality in women given diethylstilbestrol during pregnancy.
This analysis examined cause of death in women who were given diethylstilbestrol (DES) during pregnancy. The mothers cohort has not been actively followed since 1994, so survival was assessed through a search of the National Death Index. The results suggested a modest increase in death from breast cancer in the DES-exposed mothers, compared to the unexposed. We did not, however, see an excess of overall mortality in the DES-exposed mothers, or an excess of death from any specific cause other than breast cancer. In particular, DES was not associated with an increased mortality from gynecologic cancers.