Values are presented as medians and range (minimum and maximum values of age, menarche, menopause, parity, and BMI); or number and percentage of patients in each group (0 children, ≥3 children, oral contraceptive pill use ≥1 year, past or current HRT use, past or current smoking, history of PID: prospective plasma samples>1 year prior to diagnosis, type I pathogenetic pathway, and type II pathogenetic pathway). BOT: borderline ovarian tumor; EOC: epithelial ovarian cancer; HRT: hormone replacement therapy; PID: pelvic inflammatory disease; BMI: body mass index; SSPC: Serous Surface Papillary Carcinoma.
aVariable with partial missing data.
bMann-Whitney U test.
cFisher’s exact test.