Table II.

Results of Cox hazard model analysis.

Items	Regression coefficient (B)	SE	Wald test	Degrees of freedom	P-value	RR	95.0% confidence interval
Sex	1.073	0.263	1.342	1	0.302	0.872	0.543–1.378
Age	0.873	0.211	0.892	1	0.236	1.237	0.915–1.528
Tumor size	0.462	0.376	1.773	1	0.092	1.152	0.842–1.352
PG	1.0832	0.353	2.421	2	0.517	1.037	0.884–1.379
CS	0.542	0.426	8.342	1	0.044	2.603	1.741–2.905
LM	0.782	0.284	10.261	1	0.009	2.154	2.035–2.553
IL-23R level	0.882	0.118	7.231	1	0.011	3.021	2.648–3.527
IL-17 level	1.245	0.205	11.528	1	0.006	2.604	2.184–3.017

SE, standard error; RR, relative risk; PG, pathological grade; CS, clinical stage; LM, lymphatic metastasis; IL-23R, interleukin-23 receptor.