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. Author manuscript; available in PMC: 2015 Aug 30.
Published in final edited form as: Int J Oncol. 2010 Jul;37(1):51–59. doi: 10.3892/ijo_00000652

Table I.

Characteristics of 69 breast cancer subjects compared with total breast cancer cases in Seoul National University Hospital during the same period.

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)
a

Number of consecutive patients operated on primary invasive breast cancer from January 1996 to June 2003.