Table IV.

Comparison of baseline factors of the 85 patients stratified according to tubulin expression (types II, III and IV β-tubulin).

Factor	P-value	β-tubulin III expression (negative)		β-tubulin III expression (positive)		P-value	β-tubulin II expression (negative)		β-tubulin II expression (positive)		P-value	β-tubulin IV expression (negative)		β-tubulin IV expression (positive)
		n	%	n	%		n	%	n	%		n	%	n	%
Gender	0.473					0.717					0.748
Male		17	38.6	27	61.4		34	77.3	10	22.7		23	52.3	21	47.7
Female		19	46.3	22	53.7		33	80.5	8	19.5		20	48.8	21	51.2
Age (years)	0.600					0.446					0.897
≤60		20	40.0	30	60.0		38	76.0	12	24.0		25	50.0	25	50.0
>60		16	45.7	19	54.3		29	82.9	6	17.1		18	51.4	17	48.6
Histology	0.724					0.962					0.308
Adenocarcinoma		19	39.6	29	60.4		38	79.2	10	20.8		22	45.8	26	54.2
Squamous cell carcinoma		14	48.3	15	51.7		23	19.3	6	20.7		15	51.7	14	48.3
Other		3	37.5	5	62.5		6	75.0	2	25.0		6	75.0	2	25.0
Smoking	0.318					0.840					0.729
No		23	46.9	26	53.1		39	79.6	10	20.4		24	49.0	25	51.0
Yes		13	36.1	23	63.9		28	77.8	8	22.2		19	52.8	17	47.2
Lymphatic metastasis	0.514					0.890					0.323
Yes		18	39.1	28	60.9		36	78.3	10	21.7		21	46.7	24	53.3
No		18	46.2	21	53.8		31	79.5	8	21.2		21	55.3	17	44.7
Stage	0.603					0.652					0.336
IB		5	50.0	5	50.0		9	90.0	1	10.0		4	40.0	6	60.0
IIA		8	32.0	17	68.0		20	80.0	5	20.0		13	52.0	12	48.0
IIB		16	48.5	17	51.5		24	72.7	9	27.3		20	60.6	13	39.4
IIIA		7	41.2	10	58.8		14	82.4	3	17.6		6	35.3	11	64.7