Table 1.

Correlations between KRT17 expression and clinicopathological factors in lung cancers

	n	KRT17 low expression	KRT17 high expression	P-value
Tissues
Normal	32	32 (100.0%)	0	<0.001**
Lung cancer	158	77 (49.0%)	81 (51.0%)
Age
<60	84	48 (57.1%)	36 (42.9%)	0.024*
≥60	74	29 (39.2%)	45 (60.8%)
Gender
Male	118	46 (39.0%)	72 (61.0%)	<0.001**
Female	40	31 (77.5%)	9 (22.5%)
Histological type
Squamous cell carcinoma	78	22 (28.2%)	56 (71.8%)	<0.001**
Adenocarcinoma	80	55 (68.8%)	25 (31.2%)
Differentiation
Well	25	18 (72.0%)	7 (28.0%)	0.011*
Moderate-Poor	133	59 (44.4%)	74 (55.6%)
TNM stages
I	44	19 (43.2%)	25 (56.8%)	0.121
II	61	36 (59.0%)	25 (41.0%)
III-IV	53	22 (41.5%)	31 (58.5%)
Lymphatic metastasis
Yes	73	42 (57.5%)	31 (42.5%)	0.04*
No	85	35 (41.2%)	50 (58.8%)

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

Abbreviation: KRT17, keratin 17.