Table 3. Contribution of various potential prognostic factors to survival by cox regression analysis on 125 human nasopharyngeal carcinoma tissues.

	Hazard ratio	P	95.0% Confidence interval
N classification			0.157–1.762
N1–N2 versus N3–N4	0.525	0.297
Distant metastasis			0.409–2.231
M0 versus M1	0.955	0.915
TNM clinical stage			0.518–3.794
I–II versus III–IV	1.401	0.507
HAX-1 expression			0.105–0.856
Low versus High	0.300	0.024*

Statistical analyses were performed by the Cox regression analysis.

^*P < 0.05 was considered significant.