Table I.
No. of subjects (%) | No. (%) in SNUH (n=2428)a | |
---|---|---|
Age distribution | ||
<30 | 3 (4.3) | 67 (2.8) |
30–39 | 22 (31.9) | 473 (19.5) |
40–49 | 24 (34.8) | 990 (40.8) |
50–59 | 12 (17.4) | 630 (25.9) |
≥60 | 8 (11.6) | 268 (11.0) |
Median age at diagnosis, years (range) | 43 (25–86) | 46 (20–89) |
Histological subtype | ||
Ductal | 65 (94.2) | 2169 (89.3) |
Medullary | 4 (5.8) | 31 (1.3) |
Histological grade | ||
1 or 2 | 30 (43.5) | 1126 (46.4) |
3 | 33 (47.8) | 749 (30.8) |
Nuclear grade | ||
1 or 2 | 28 (40.6) | 1289 (53.1) |
3 | 39 (56.5) | 768 (31.6) |
T stage | ||
T1 | 16 (23.2) | 1163 (47.9) |
T2 | 46 (66.7) | 1119 (46.1) |
T3 | 7 (10.1) | 118 (4.9) |
T4 | 0 (0) | 28 (1.2) |
Lymph node status | ||
N0 | 24 (34.8) | 1463 (60.3) |
N1 | 20 (29.0) | 571 (23.5) |
N2 | 12 (17.4) | 230 (9.5) |
N3 | 13 (18.8) | 164 (6.8) |
2 (2.9) | 86 (3.5) | |
ER and PR status | ||
ER(+) or PR(+) | 32 (47.1) | 1404 (61.2) |
ER(−) and PR(−) | 36 (52.9) | 890 (38.8) |
HER-2 (IHC) | ||
Negative (0 or 1+) | 32 (47.1) | 1051 (51.7) |
Positive (2+ or 3+) | 36 (52.9) | 983 (48.3) |
P53 | ||
<10% | 38 (56.8) | |
≥10 | 29 (43.2) | |
Ki-67 | ||
<10% | 26 (46.4) | |
≥10, <50% | 25 (44.6) | |
≥50% | 5 (8.9) |
Number of consecutive patients operated on primary invasive breast cancer from January 1996 to June 2003.