From: Prediction of outcome after diagnosis of metachronous contralateral breast cancer
First breast cancer, No (%) | Second breast cancer, No (%) | |||
---|---|---|---|---|
Metastasis | No metastasis | Metastasis | No metastasis | |
No = 723 | No = 210 | No = 513 | No = 210 | No = 513 |
Diagnosis | ||||
<1977 | 37 (18) | 97 (19) | 0 | 0 |
1977-1986 | 66 (31) | 161 (31) | 53 (25) | 95 (19) |
1987-1996 | 79 (38) | 191 (37) | 78 (37) | 179 (35) |
1997-2007 | 28 (13) | 64 (12) | 79 (38) | 239 (47) |
Age (years) | ||||
Median (range) | 52 (27-85) | 60 (30-90) | 60 (32-92) | 70 (32-98) |
<50 | 94 (45) | 123 (24) | 50 (24) | 34 (7) |
≥50 | 116 (55) | 390 (76) | 160 (76) | 479 (93) |
Menopausal status | ||||
Premenopausal | 100 (51) | 132 (28) | 29 (16) | 32 (7) |
Postmenopausal | 96 (49) | 336 (72) | 148 (84) | 440 (93) |
Missing | 14 | 45 | 33 | 41 |
Node status | ||||
N0 | 105 (53) | 330 (72) | 97 (50) | 292 (73) |
N+ | 92 (47) | 130 (28) | 96 (50) | 106 (27) |
Missing | 13 | 53 | 17 | 115 |
Size (mm) | ||||
Median (range) | 20 (1-90) | 15 (1-100) | 18 (1-110) | 14 (1-90) |
Missing | 28 | 50 | 17 | 20 |
Surgery | ||||
Modified radical mastectomy | 162 (78) | 362 (71) | 158 (75) | 340 (66) |
Partial mastectomy | 44 (21) | 149 (29) | 45 (21) | 161 (31) |
No Surgery | 1 (0.5) | 0 | 6 (3) | 12 (2) |
Missing | 3 | 2 | 1 | 0 |
Radiotherapy | ||||
No | 56 (27) | 213 (42) | 122 (58) | 360 (70) |
Yes | 153 (73) | 293 (58) | 87 (42) | 152 (30) |
Missing | 1 | 7 | 1 | 1 |
Chemotherapy | ||||
No | 172 (82) | 473 (94) | 178 (85) | 491 (96) |
Yes | 37 (18) | 32 (6) | 31 (15) | 21 (4) |
Missing | 1 | 8 | 1 | 1 |
Endocrine treatment No | 158 (76) | 391 (77) | 132 (64) | 296 (58) |
Yes | 51 (24) | 114 (23) | 74 (36) | 215 (42) |
Missing | 1 | 8 | 4 | 2 |