Table 2.

Univariate and multivariate analysis of different prognostic variables in patients with nasopharyngeal carcinoma using Cox regression analysis

	Univariate analysis			Multivariate analysis
	No. patients	P	Regression coefficient (SE)	P	Relative risk (95% CI)
Histological classification
WHO type I	11	0.936	−0.066 (0.199)	0.990	1.003 (0.680–1.478)
WHO type II	26
WHO type III	123
Clinical stage
I–II	46	0.000	1.283 (0.358)	0.004	2.631 (1.278–5.417)
III–IV	114
N classification
N0	26	0.000	0.897 (0.240)	0.003	2.042 (1.273–3.274)
N1–N2	115
N3	19
HOTAIR
SI < 6	69	0.008	0.702 (0.263)	0.012	1.902 (1.132–3.194)
SI ≥ 6	91

CI, confidence interval; N, lymph node; SE, standard error; WHO, World Health Organization.