Epithelial ovarian cancer is a fatal disease of largely unknown etiology. Higher parity is
associated with reduced risk of ovarian cancer. However, among parous women, the impact …

Background Parity is known to have a protective effect as regards ovarian cancer, but its
effect on the different histological subtypes of ovarian cancer is not well known. The impact …

Background Parity is associated with decreased risk of invasive ovarian cancer; however,
the relationship between incomplete pregnancies and invasive ovarian cancer risk is …

Objectives. While parity is a protective factor in ovarian cancer, the role of time factors of
pregnancy and birth is still controversial. We considered therefore the role of birth timing in …

Ovarian cancer risk is known to be reduced amongst women who have had children, but
reported associations with breastfeeding are varied. Few studies have had sufficient power …

Background: Recent studies have suggested that several ovarian cancer risk factors differ by
parity status, but these findings have not been confirmed. We evaluated whether known risk …

Ovarian cancer is influenced by reproductive factors, with a reduced risk of epithelial ovarian
cancer in parous women. Nonepithelial ovarian cancer frequently affects young women and …

Women with higher parity have a lower risk of ovarian cancer possibly because of
pregnancy hormones, but the specific effect of different pregnancy hormones on ovarian …

Recent animal studies suggest that progestagen-induced apoptosis of transformed ovarian
surface epithelial cells may underlie the observed protective effect of pregnancy on the risk …

Ovarian cancer risk factors differ by histotype; however, within subtype, there is substantial
variability in outcomes. We hypothesized that risk factor profiles may influence tumor …