AK4 Promotes the Progression of HER2-Positive Breast Cancer by Facilitating Cell Proliferation and Invasion

Table 1

Relationships of AK4 and clinicopathological characteristics in 98 patients with HER2 overexpression breast cancer.

Features	All	AK4 expression
		Low	High
		()	()
Age (year)				0.331	0.565
<50	50	18	32
≥50	48	20	28
Tumor grade				0.653	0.419
Low	54	19	35
High	44	19	25
Tumor size				0.917	0.338
<2	56	24	32
≥2	42	14	28
pTNM stage				5.674	0.017
I-II	62	30	32
III-IV	36	8	26
Lymph node metastasis				3.967	0.046
Yes	46	12	34
No	52	22	26
Vascular invasion				2.421	0.120
Yes	42	20	22
No	56	18	38