Inconsistent results have been reported for the association between polycystic ovary syndrome (PCOS) and risks of ovarian and breast cancers.1 Few studies had sufficient sample sizes, well-defined diagnostic criteria, or reasonable confounding adjustment.1,2 Even fewer studies have addressed the risks of other cancers. Thus, we conducted a large, population-based cohort study with a long follow-up period and rather sufficient confounding adjustment.
Yin W, Falconer H, Yin L, Xu L, Ye W. Association Between Polycystic Ovary Syndrome and Cancer Risk. JAMA Oncol. 2019;5(1):106–107. doi:10.1001/jamaoncol.2018.5188
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