Table 4. Correlation of KLK6 expression with major clinicopathological parameters.

Parameters		Number of patients	KLK6+	r-value	P-value
Gender				1.586	0.208
	Female	92	35 (38.04)
	Male	234	107 (45.73)
Age				0.677	0.410
	<54.5	116	47 (40.52)
	≥54.5	210	95 (45.24)
Tumor differentiation				0.364	0.834
	High	104	47 (45.19)
	Medium	109	45 (41.28)
	Low	113	50 (44.25)
TNM stage				7.235	0.027
	Phase I	82	27 (32.93)
	Phase II	114	48 (42.11)
	Phase III	130	67 (51.54)
Lymph node metastases				8.356	0.004
	Yes	136	72 (52.94)
	No	190	70 (36.84)

Values are presented as number (%).

KLK6 = kallikrein 6; TNM = tumor, node, and metastasis.