Table 3. Linear regression analysis between clinicopathological features and mRNA expression count of HOXA1, HOXA5, HOXA6, and HOXC11.

	HOXA1		HOXA5		HOXA6		HOXC11
	t value	P value	t value	P value	t value	P value	t value	P value
Age≥45	-1.379	0.172	0.081	0.936	-0.822	0.413	0.477	0.635
Stage III/IV	-0.927	0.357	0.176	0.861	-0.066	0.948	-0.412	0.682
Squamous cell	4.536	<0.001	1.718	0.09	-0.138	0.891	-2.94	0.004
Grade ¾	1.567	0.121	-0.076	0.94	-0.917	0.362	-1.099	0.275
ECOG 2/3	0.358	0.721	1.458	0.149	1.585	0.117	-0.449	0.655
LN metastasis	1.907	0.06	-0.233	0.816	0.931	0.355	0.675	0.501
LVI	-1.403	0.165	-0.828	0.41	-0.12	0.905	0.137	0.891
Mortality	3.033	0.003	0.709	0.48	1.209	0.23	-0.23	0.819

ECOG, The Eastern Cooperative Oncology Group performance score; LN, lymph node; LVI, lymphovascular invasion.