New York: A woman`s lung cancer risk doesn`t appear to be linked to the number of children she has, although some scientists had thought hormonal changes during pregnancy might protect against the disease.That`s according to a new report that sums up 16 previous studies on the topic, which researchers have explored to get a better understanding of lung cancer and possible treatments.If lung cancer in women were tied to hormones the same way some breast cancers are, for instance, similar drugs might be effective against both diseases, said Jessica K. Paulus, who worked on the analysis.So far, however, studies haven`t agreed on whether or not pregnancies -- and by extension hormones -- play a role in lung cancer.That was also clear from the new work, said Paulus, of Tufts University in Medford, Massachusetts.
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