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

Table 3

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

Features	OS
	HR	95% CI	P
Pathologic T stage	0.202	0.007–5.109	0.4
Clinical stage	3.918	0.666–8.608	0.01
Nodal metastasis	1.058	0.532–3.596	0.7
Distant metastasis	1.926	0.512–4.053	0.6
Venous/lymphatic invasion	1.851	0.512–4.106	0.6
Perineural invasion	0.662	0.228–1.986	0.4
CD97 expression	3.236	1.098–8.651	0.02
CD55 expression	3.209	0.993–8.625	0.02
CD97 positive/CD55 positive	4.027	0.696–8.881	0.01