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. Author manuscript; available in PMC: 2023 Jan 26.
Published in final edited form as: J Surg Res (Houst). 2022 Sep 14;5(3):511–525. doi: 10.26502/jsr.10020251

Table 2:

Axillary surgery for all patients and for clinically N0 patients.

SLNB ALND SLNB + ALND No Surgery Chi-2
Nb % Nb % Nb % Nb % p-value
All patients 352 1001 259 17
Period P1 5 1.4 208 20.8 65 25.1 2 11.8 <0.0001
P2 82 23.3 305 30.5 113 43.6 3 17.6
P3 265 75.3 488 48.8 81 31.3 12 70.6
Subtypes Luminal A 44 12.5 273 27.3 73 28.2 3 17.6 <0.0001
Luminal B Her2− 23 6.5 134 13.4 41 15.8 0 0
Luminal B Her2+ 64 18.2 186 18.6 49 18.9 3 17.6
Her2+ 45 12.8 147 14.7 25 9.7 3 17.6
Triple Negative 176 50 259 25.9 70 27 8 47.1
Luminal Her2− Grade? 0 0 2 0.2 1 0.4 0 0
cN stage cN0 328 93.2 282 28.2 168 64.9 12 70.6 <0.0001
cN1 23 6.5 702 70.1 88 30.4 4 23.5
cNx 1 0.3 17 1.7 3 1.2 1 5.9
cT stage cT0-1 82 23.3 129 12.9 24 9.3 5 29.4 <0.0001
cT2 254 72.2 481 48.1 190 73.9 8 47.1
cT3 16 4.5 291 29.1 40 15.6 3 17.6
cT4 0 0 100 10 3 1.2 1 5.9
only cN0 patients 328 282 168 12
Period P1 5 1.5 69 24.5 46 27.4 1 8.3 <0.0001
P2 76 23.2 54 19.1 65 38.7 1 8.3
P3 247 75.3 159 56.4 57 33.9 10 83.3
Subtypes Luminal A 43 13.1 90 31.9 46 27.4 2 16.7 <0.0001
Luminal B Her2− 23 7 28 9.9 26 15.5 0 0
Luminal B Her2+ 61 18.6 46 16.3 33 19.6 3 25
Her2+ 44 13.4 46 16.3 16 9.5 1 8.3
Triple Negative 157 47.9 72 25.5 47 28 6 50
cT stage cT0-1 77 23.5 50 17.7 18 10.7 5 41.7 <0.0001
cT2 237 72.3 137 48.6 125 74.4 6 50
cT3 14 4.3 81 28.7 24 14.3 1 8.3
cT4 0 0 14 5 1 0.6 0 0

Abbreviations: cT, clinical tumor size stage; cN, clinical lymph node status; SLNB, sentinel lymph node biopsy; ALND, axillary lymph node dissection