Table 1.

Clinicopathologic characteristics of breast cancer patients with different ITM2A expression from the TCGA database

Characteristic	No. (%) of patients			Correlation
	Total	ITM2A high	ITM2A low	Chi-square	p value
Age in years	1208			6.048	0.0139
≤ 60		285	362
> 60		208	353
ER status	1145			3.016	0.0824
Positive		382	504
Negative		96	163
PR status	1142			6.734	0.0095
Positive		340	427
Negative		136	239
HER2 level				2.726	0.2559
1+		122	160
2+		75	134
3+		39	57
T classification	1205			12.67	0.0018
T1		145	164
T2		256	443
T3/T4		92	105
N classification	1185			8.345	0.0394
N0		261	300
N1		220	191
N2		68	64
N3		49	32
Stage	1199			14.62	0.0022
I		92	110
II		254	432
III		134	141
Other		11	25

ER estrogen receptor, PR progesterone receptor, HER2 receptor tyrosine-protein kinase erbB-2