Histology and clinical characteristics of primary ovarian tumors.

Menopausal Status was recorded as follows: Post  =  age> =  55 or self-reported menopause, hormone replacement therapy, hysterectomy or oophorectomy; Peri  =  age<55 and inconsistent menstruation; Pre  =  age<55 and menstruating (See Appendix S1). Elevated Risk was recorded as follows: Y if one or more of the following conditions were met: a) family history of ovarian or breast cancer; b) Ashkenazi Jewish ethnicity and family history of breast cancer; c) BRCA1 or 2 mutation; d) mutation status unknown and family history of BRCA1 or 2 mutation [64].