Non-Axillary N (%)

Axillary N (%)

p-Value

Age

<0.001

<50 yo

155 (49.4)

379 (28.6)

>50 yo

159 (50.6)

945 (71.4)

Injection Method

0.009

Intratumoral

204 (65.2)

781 (58.5)

Peritumoral

24 (7.7)

82 (6.1)

Subdermal

84 (26.8)

436 (31.6)

Subareolar

1 (0.3)

35 (2.6)

Treatment

0.014

Tumorectomy

261 (82.1)

1162 (87.5)

Mastectomy

57 (17.9)

166 (12.5)

Tumor Location

<0.001

Outer Quadrants

122 (39.2)

685 (53.2)

Inner Quadrants

189 (60.8)

603 (46.8)

Vascular/Lymphatic Infiltration

Yes

54 (33.5)

375 (26.3)

0.064

No

107 (66.5)

522 (73.7)

Number of Nodes

1 or more

101 (31.8)

328 (24.4)

0.007

0

217 (68.2)

1014 (75.6)

Free Margins

0.501

Cytology

0.169

Micrometastasis

0.843

Single/Multiple

0.346

Histology

0.130

Hormone Receptors

0.222

Erb2

0.184