Table 1 Characteristics of patients with mucinous carcinoma and infiltrating ductal carcinoma
MC (n = 93) | IDC (n = 2,674) | P | ||
|---|---|---|---|---|
Age, years, | ||||
mean (SD) | 49.77 (13.76) | 50.68 (11.39) | 0.529 | |
median | 45.88 | 49.22 | ||
range | 28, 85 | 15, 89 | ||
Tumor size, cm, | 0.185 | |||
mean (SD) | 3.06 (2.55) | 2.69 (1.65) | ||
median | 2.50 | 2.30 | ||
range | 0.20, 17.0 | 0.10, 15.0 | ||
Tumor stage, n (%), | 0.480 | |||
T1 | 29 (34.12) | 1123 (42.00) | ||
T2 | 47 (55.29) | 1297 (48.50) | ||
T3 | 7 (8.24) | 178 (6.66) | ||
T4 | 2 (2.35) | 76 (2.84) | ||
unknown or other | 8 | 0 | ||
Grade, n (%), | <0.0001 | |||
I | 22 (66.67) | 251 (14.13) | ||
II | 11 (33.33) | 994 (55.97) | ||
III | 0 (0) | 531 (29.90) | ||
unknown or other | 60 | 898 | ||
Lymphovascular invasion, n (%), | <0.0001 | |||
present | 10 (15.38) | 996 (47.41) | ||
absent | 55 (84.62) | 1105 (52.59) | ||
unknown or other | 28 | 573 | ||
ER status, n (%), | <0.0001 | |||
positive | 84 (90.32) | 1715 (65.28) | ||
negative | 9 (9.68) | 912 (34.72) | ||
unknown or other | 0 | 47 | ||
PR status, n (%), | <0.0001 | |||
positive | 74 (79.57) | 1555 (59.19) | ||
negative | 19 (20.43) | 1072 (40.81) | ||
unknown or other | 0 | 47 | ||
HER2/neu gene overexpression status, n (%), | 0.023 | |||
positive | 8 (9.88) | 467 (19.95) | ||
negative | 73 (90.12) | 1874 (80.05) | ||
unknown or other | 12 | 333 | ||
Lymph node status, n (%), | <0.0001 | |||
positive | 17 (19.77) | 1144 (43.73) | ||
negative | 69 (80.23) | 1472 (56.27) | ||
not evaluated | 7 | 58 | ||
Primary treatment, n (%), | 0.660 | |||
mastectomy | 59 (64.84) | 1735 (67.27) | ||
lumpectomy with RT | 30 (32.97) | 751 (29.12) | ||
lumpectomy without RT | 2 (2.20) | 93 (3.61) | ||
no surgery | 2 | 95 | ||
Systemic therapy, n (%), | <0.0001 | |||
endocrine therapy alone | 37 (44.05) | 523 (21.02) | ||
chemotherapy alone | 6 (7.14) | 603 (24.24) | ||
endocrine therapy with chemotherapy | 41 (48.81) | 1362 (54.74) | ||
none | 8 | 186 | ||
unknown | 1 | 0 | ||
Follow up time, months | ||||
median | 56 | 55 | ||
range | 1.97-142 | 0.30-142 | ||
10-year overall survival rate | 0.9447 | 0.8611 | 0.042 | |