Tall women at high risk of cancer

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By Jimmy Downs

Saturday Jan 5, 2013 (foodconsumer.org) -- It has been known that high levels of growth hormones in childhood can not only promote the growth of the skeleton, but also a variety of cancer.   A new study in International Journal of Cancer confirmed that body height is positively associated with at least ten types of cancer in women.

The study shows that a10-cm increase in height was associated with 13 percent increased risk for all cancers including colorectum cancer, colon cancer, premenopausal breast cancer, postmenopausal breast cancer, endometrium cancer, ovarian cancer, kidney cancer, thyroid cancer, melanoma and leukemia.

Geoffrey Kabat from Albert Einstein College of Medicine in Bronx, NY, USA and colleagues studied data from 90,000 women enrolled in the Canadian National Breast Screening Study and found the association.

For the study, weight and height were measured, and health information on reproductive and medical history, and lifestyle was collected at baseline and the association between the risk of all cancers and 19 site-specific cancers and body height was examined.  Among 88,256 women, 5679 incident invasive cancers were recorded during the study.
 
A 10-cm increase in height was found associated with 51 percent increased risk for melonoma and 11 percent increased risk for postmenopausal breast cancer.

The researchers concluded "Our study provides strong support for a positive association of adult height with risk of certain cancers. The underlying biological mechanisms are not clear but may differ by anatomic site."

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