Table 2.

Univariate and multivariate analyses of various predictive factors for liver metastasis in patients with advanced nasopharyngeal carcinoma.

Variables	Univariate analysis OR (95% CI)	P value	Multivariate analysis OR (95% CI)	P value
Sex		0.525
Male	Reference
Female	1.320 (0.560–3.108)
Age		0.304
< 65	Reference
≥ 65	0.444 (0.095–2.084)
Smoker		0.922
No	Reference
Yes	0.964 (0.460–2.078)
T-stage		0.004		0.002
Tx-3	Reference		Reference
T4	0.630 (0.462–0.860)		0.600 (0.436–0.825)
N-stage		0.160		0.060
N0-2	Reference		Reference
N3	0.533 (0.222–1.281)		0.406 (0.158–1.041)
HBsAg		0.253		0.641
No	Reference		Reference
Yes	1.764 (0.666–4.672)		1.284(0.449–3.670)
EBV		0.043		0.018
No	Reference		Reference
Yes	2.325(1.029–5.256)		2.856(1.193–6.837)
CD3		0.550
No	Reference
Yes	1.312(0.539–3.199)
CD8		0.288
No	Reference
Yes	1.534(0.697–3.376)
CD4		0.475
No	Reference
Yes	1.404(0.553–3.563)
NK		0.925
No	Reference
Yes	0.963(0.435–2.129)
CD45		0.796
No	Reference
Yes	0.133(0.441–2.913)