Table 2. Logistic regression analysis of variables associated with progression-free survival.

Variable	Progression-Free Survival
	Univariate			Multivariate
				Model 1			Model 2
	HR	95% CI	P value	HR	95% CI	P value	HR	95% CI	P value
STAT3 score	2.473	1.240–5.257	0.010	1.309	0.341–1.625	0.491
Nuclear STAT3 score	2.753	1.380–5.853	0.004				2.010	0.990–4.337	0.053
age	1.030	0.993–1.073	0.118
≧pT3	13.471	4.797–56.228	<0.001	9.605	3.212–41.452	<0.001	9.891	3.321–42.627	<0.001
LVI	5.855	2.879–12.854	<0.001	1.818	0.782–4.416	0.166	1.936	0.859–4.567	0.111
pN stage	5.692	2.585–11.619	<0.001	3.439	1.448–7.909	0.006	3.300	1.396–7.535	0.008
Tumor grade	8.222	1.770–146.235	0.003	9.668	1.929–176.738	0.002	9.538	1.990–171.488	0.002
Tumor size	1.891	0.921–3.976	0.083
Location (ureter vs pelvis)	1.062	0.535–2.139	0.863