Table 1. Relationship of PRC1 protein levels with clinicopathological characteristics in lung SCC patients.

Characteristics	Number of patients	Cytoplasmic expression
		Low (≤6.0)	High (>6.0)	P
All patients	75	36	39
Gender				0.203
Male	70	32	38
Female	5	4	1
Age				0.149
<65 y. o.	38	20	18
≥65 y. o.	37	16	21
Size of tumor (cm)				0.251
≤3	23	10	13
>3	52	26	26
Grade				0.082
Low	14	7	7
High	61	29	32
Lymph node metastasis (pN)				0.021*
N0	41	27	14
N1–3	34	9	25
p-TNM stages				0.038*
I	27	20	7
II	19	5	14
III	29	11	18

*, P<0.05. PRC1, protein regulator of cytokinesis-1; SCC, squamous cell carcinoma.