(HealthDay News) -- Medically induced menopause, particularly when it involves removal of both ovaries, nearly doubles a younger woman's risk for developing lung cancer, a new Canadian study has found.
"It's possible that vulnerability to lung cancer is caused by early and sudden decrease in estrogen levels or potentially long-term use of hormone replacement therapy, and further research is needed to explore these hypotheses," study co-author Jack Siemiatycki, a professor at the University of Montreal's Department of Social and Preventive Medicine, said in a university news release.
The finding, published online in the International Journal of Cancer, is based on a study of 999 patients from hospitals across Montreal, including 422 women with lung cancer. The researchers analyzed the patients' socio-demographic information, place of residency, jobs, medical and smoking history, and (among women) menstruation and pregnancy histories. Read more...
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