From: Lifetime ovulatory years and ovarian cancer gene expression profiles
Study, n (%) | |
 NEC | 83 (35) |
 NHS | 108 (46) |
 NHSII | 43 (18) |
Age at diagnosis, years, mean (SD) | 63 (10) |
Calendar year at diagnosis, median | 2004 |
Menopausal status, n (%) | |
 Premenopausal | 51 (22) |
 Postmenopausal | 183 (78) |
Age at menarche, years, mean (SD) | 13 (1) |
Oral contraceptive use, years, mean (SD) | 3 (4) |
Parity, mean (SD) | 2 (2) |
Age at menopause, years, mean (SD)a | 50 (3) |
Histotype, n (%) | |
 High grade serous/poorly differentiated | 211 (90) |
 High grade endometrioid | 22 (9) |
 Brenner | 1 (1) |
Stage, n (%) | |
 I | 35 (15) |
 II | 22 (9) |
 III | 156 (67) |
 IV | 19 (8) |
 Unknown | 2 (1) |
Ovulatory years, mean (SD) | 36 (6) |