Are Thyroid Hormone and Tumor Cell Proliferation in Human Breast Cancers Positive for HER2 Associated?

Table 2

Comparison of clinical and histopathological characteristics in HER2(+) and HER2(−) breast cancer patients.

	HER2 staining		Significance
	Negative; ()	Positive; ()
Age (years)	60.3 (1.6)	60.1 (3.3)	= 0.95
Tumor size (cm)	2.3 (0.12)	3.0 (0.28)
Ki67	8 (0.9)	16 (2.3)
Menopause
No	29.7%	27.3%	= 0.83
Yes	70.3%	72.7%
Clinical stage
I	28.1%	13.6%	= 0.40
II	53.1%	54.5%
III	12.5%	18.2%
IV	6.3%	13.6%
Histopathological grade
1	9.8%	4.5%	= 0.63
2	77%	86.4%
3	13.2%	9.1%
PR staining
Negative	28.6%	33.3%	= 0.68
Positive	71.4%	66.7%