Table 2.

Association between clinical variables and PROM1 (CD133) expression

Variable	Membrane expression		P value	Cytoplasm expression		P value
	Positive	Negative		Positive	Negative
Gender
Male	67	63	0.018a	76	54	0.391
Female	14	31		23	22
Age
≤60	36	55	0.063	46	45	0.094
>60	45	39		53	31
Histological type
SCC	34	40	0.665	45	29	0.128
ADC	41	50		46	45
Others	6	4		8	2
Differentiation
Poor	26	28	0.168	32	22	0.850
Moderate	27	21		27	21
Well	28	44		39	33
Tumor size
T1	13	18	0.992	16	15	0.213
T2	40	43		47	36
T3	14	15		21	8
T4	14	18		15	17
Lymph node invasion
N0	43	53	0.500	53	43	0.190
N1	21	16		25	12
N2	16	24		19	21
N3	1	1		2	0
Distant metastasis
M0	77	90	0.829	103	72	0.619
M1	4	4		4	4
Clinical stage
I	29	35	0.587	37	27	0.319
II	22	18		27	13
III	26	37		31	32
IV	4	4		4	4

ADC, Adenocarcinoma; SCC, Squamous cell carcinoma;

^aStatistically significant.