Table 1.

Association between clinical characteristics of triple-negative breast cancer patients and KLK7 protein expression

Clinical parameters	KLK7a	p
	Low/high
Age (years)		0.064
≤ 50	33/17
> 50	66/17
Tumor size		0.512
pT0+pT1	30/10
pT2+pT3+pT4	66/24
Nodal status		0.142
pN0	50/22
pN+	46/12
Nuclear grade		0.493
G2	8/2
G3	89/32

Chi-square test.

^aDichotomized into low and high levels by the 75^th percentile;

Due to missing values, numbers do not always add up to n = 133.