Table 4.

Regression analysis for COX-2 immunostaining in UCB.

Variable	Exp(β)	95% CI for exp(β)	p value
Grade	2.4	1.568-3.674	<0.001
Muscle invasion	0.153	0.034-0.692	0.015
Pathological stage (pT)	0.150	0.033-0.680	0.014
Lymphovascular invasion	0.259	0.091-0.736	0.011
Distant metastasis	0.272	0.079-0.938	0.039