New research published in the journal Cancer Epidemiology, Biomarkers & Prevention found a surprising correlation between height and cancer risk among postmenopausal women; the taller the woman, the greater her risk for the disease.

The researchers studied more than 20,900 women ages 50 to 79 who participated in the Women’s Health Initiative (WHI) study, an on-going analysis of post menopausal women and the factors that contribute to their health. They separated the women into five groups based on their height, starting with women shorter than 5 feet 1 inch, and matched them to data on their cancer rates.

They discovered that for every 10 centimeters of height, a woman’s risk of developing a range of different cancers increased by 13%. When they looked at all the cancers together, they found that taller women had a 13% to 17% greater risk of developing melanoma, breast cancer, ovarian cancer, endometrial cancer and colon cancer. They also had a 23% to 29% greater risk of developing kidney, rectum, thyroid and blood cancers. All of the cancers showed a positive association with height; none of the taller women showed a lower risk of cancer compared to their shorter counterparts.

While the connection seems odd, previous studies have exposed the same association; it’s possible, for example, that on the most basic level, the greater number of cells and tissues that taller people possess simply increases the odds that some of those cells will develop abnormally and become malignant. Alternatively, some of the same processes that fuel the growth that contributes to height may also feed tumors.