Immunohistochemical Expression and Prognostic Value of CD97 and Its Ligand CD55 in Primary Gallbladder Carcinoma

Table 2

Univariate analysis of the associations of prognosis with various clinicopathologic parameters in patients with PGC.

Features	OS
	HR	95% CI	P
Gender	0.628	0.312–1.326	0.3
Age at diagnosis	0.696	0.383–1.508	0.2
Histological grade	33.291	0.869–1767.639	0.06
Pathologic T stage	2.923	1.385–8.763	0.008
Clinical stage	4.951	2.015–10.278	0.001
Nodal metastasis	3.009	1.172–8.638	<0.001
Distant metastasis	8.093	2.168–22.679	0.001
Venous/lymphatic invasion	11.662	2.908–51.338	0.001
Perineural invasion	3.921	1.087–8.692	0.01
CD97 expression	3.039	1.122–7.165	0.005
CD55 expression	2.763	0.928–6.927	0.007
CD97 positive/CD55 positive	2.591	0.882–6.626	0.008