| Patients with any methylation marker | All patients |
---|---|---|
(Total N = 855) | (Total N = 1508) | |
N (%) | N (%) | |
Age at diagnosis | ||
 < 50 years | 215 (25.1) | 407 (27.0) |
 ≥ 50 years | 640 (74.9) | 1101 (73.0) |
Menopausal status | ||
 premenopausal | 244 (29.2) | 472 (31.9) |
 postmenopausal | 593 (70.8) | 1006 (68.1) |
 missing | 18 | 30 |
Age at Menarche | ||
 ≤ 12 years | 372 (44.0) | 658 (44.0) |
 > 12 years | 473 (56.0) | 837 (56.0) |
 missing | 10 | 13 |
Parity | ||
 Nulliparous | 119 (13.9) | 198 (13.1) |
 Parous | 736 (86.1) | 1310 (86.9) |
Age at First Birth (among parous women only) | ||
 ≤ 23 years | 242 (32.9) | 437 (33.4) |
 23–27 years | 241 (32.7) | 430 (32.9) |
 ≥ 27 years | 253 (34.4) | 442 (33.8) |
 missing | 0 | 1 |
Lactaction (among parous women only) | ||
 Never | 462 (62.8) | 830 (63.4) |
 Ever | 274 (37.2) | 480 (36.6) |
Tumor Stage | ||
 In Situ | 104 (12.2) | 235 (15.6) |
 Invasive | 751 (87.8) | 1273 (84.4) |
ER Status | ||
 Positive | 478 (76.2) | 726 (73.3) |
 Negative | 149 (23.8) | 264 (26.7) |
 missing | 228 | 518 |
PR Status | ||
 Positive | 399 (63.6) | 635 (64.1) |
 Negative | 228 (36.3) | 355 (35.9) |
 missing | 228 | 518 |