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. 2016 May 4;79(5):418–422. doi: 10.1007/s12262-016-1500-3

Table 3.

The effect of the tumor’s histopathological factors on the sentinel lymph node positivity (Pearson chi-square)

Variables SLN p value
Negative % (n:57) Positive % (n:32)
Age
 ≤50 29 (72, 5 %) 11 (27, 5 %) 0, 133
 >50 28 (57, 1 %) 21 (42, 9 %)
Tumor size
 T1 39 (69, 6 %) 17 (30, 4 %) 0, 330
 T1a 1 (100 %) 0 (0 %)
 T1b 9 (81, 8 %) 2 (18, 2 %)
 T1c 29 (65, 9 %) 15 (34, 1 %)
 T2 18 (54, 5 %) 15 (45, 5 %)
Multifocality
 Yes 3 (75 %) 1 (25 %) 0, 640
 No 54 (63, 5 %) 31 (36, 5 %)
Tumor localization
 Upper outer quadrant 29 (54, 7 %) 24 (45, 3 %) 0, 069
 Lower outer quadrant 17 (85 %) 3 (15 %)
 Upper inner quadrant 6 (85, 7 %) 1 (14, 3 %)
 Lower inner quadrant 2 (40 %) 3 (60 %)
 Central 3 (75 %) 1 (25 %)
Histopathology
 Ductal 49 (69 %) 22 (31 %) 0, 068
 Lobular 1 (16, 7 %) 5 (83, 3 %)
 Mix 3 (50 %) 3 (50 %)
 Other 4 (66, 7 %) 2 (33, 3 %)
Lymphovascular invasion
 No 55 (67, 9 %) 26 (32, 1 %) 0, 016
 Yes 2 (25 %) 6 (75 %)
Histological grade
 1 9 (69, 2 %) 4 (30, 8 %) 0, 786
 2 35 (61, 4 %) 22 (38, 6 %)
 3 13 (68, 4 %) 6 (31, 6 %)
ER
 Positive 44 (62 %) 5 (29, 4 %) 0, 507
 Negative 12 (70,6 %) 27 (38 %)
PR
 Positive 42 (63, 6 %) 24 (36, 4 %) 0, 507
 Negative 14 (63, 6 %) 8 (36, 4 %)
Her2/neu
 Positive 20 (64, 5 %) 11 (35, 5 %) 0, 684
 Negative 30 (60 %) 20 (40 %)
P53
 Positive 21 (67, 7 %) 10 (32, 3 %) 0,503
 Negative 16 (59, 3 %) 11 (40, 7 %)