Table III.

Association between the expression level of Bmi-1 or PADI4 and clinicopathological variables.

	Bmi-1					PADI4
Variable	Total cases, n	Positive cases, n	Positive rate, %	χ2	P-value	Total cases, n	Positive cases, n	Positive rate, %	χ2	P-value
Gender				0.028	0.866				2.600	0.107
Male	61	45	73.8			61	45	73.8
Female	25	18	72.0			25	14	56.0
Age, years				0.742	0.389				0.711	0.399
<60	44	34	77.3			44	32	72.7
≥60	42	29	69.0			42	27	64.3
Differentiation degree				13.787	0.001				4.773	0.092
High	9	2	22.2			9	5	55.6
Moderate	47	36	76.6			47	29	61.7
Poor	30	25	83.3			30	25	83.3
Clinical stage					0.005				5.771	0.016
I/II	70	47	67.1			70	44	62.9
III/IV	16	16	100.0			16	15	93.8
T classification				0.618	0.432				6.672	0.010
T1/2	28	19	67.9			28	14	50.0
T3/4	58	44	75.9			58	45	77.6
Lymph node metastases					0.005				5.771	0.016
Negative	70	47	67.1			70	44	62.9
Positive	16	16	100.0			16	15	93.8

Bmi-1, B-cell-specific Moloney leukemia virus insert site 1; PADI4, peptidyl arginine deiminase IV.