Table 3.

Correlations between KRT17 expression and clinicopathological factors in lung squamous cell carcinomas

	n	KRT17 low expression	KRT17 high expression	P-value
Tissues
Normal	32	32 (100.0%)	0	<0.001**
Squamous cell cancer	78	22 (28.2%)	56 (71.8%)
Age
<60	32	9 (28.1%)	23 (71.9%)	0.990
≥60	46	13 (28.3%)	33 (71.7%)
Gender
Male	69	15 (21.7%)	54 (78.3%)	0.002**
Female	9	7 (77.8%)	2 (22.2%)
Differentiation
Well	7	2 (28.6%)	5 (71.4%)	0.982
Moderate-Poor	71	20 (28.2%)	51 (71.8%)
TNM stages
I	32	9 (28.1%)	23 (71.9%)	0.974
II	26	7 (26.9%)	19 (73.1%)
III–IV	20	6 (30.0%)	14 (70.0%)
Lymphatic metastasis
Yes	37	12 (32.4%)	25 (67.6%)	0.431
No	41	10 (24.4%)	31 (75.6%)

Notes: **P<0.01, *P<0.05.

Abbreviation: KRT17, keratin 17.