Table 3.

Factors influencing erectile dysfunction treatment instauration using univariate and multivariate analyses

Factors	Univariate analysis		Multivariate analysis
	Odds ratio (95% CI)	P	Odds ratio (95% CI)	P
Age	1.013 (0.923–1.112)	0.779	1.043 (0.937–1.162)	0.438
Pre-VTP IIEF5 score	0.977 (0.920–1.037)	0.436	0.976 (0.913–1.043)	0.976
Cancer progression	0.587 (0.202–1.709)	0.237	0.416 (0.129–1.338)	0.141
Repeated VTP	0.234 (0.049–1.118)	0.045	0.210 (0.037–1.189)	0.078
Bilateral treatment	1.360 (0.484–3.826)	0.371	1.301 (0.442–4.014)	0.647
Extraprostatic necrosis	3.221 (1.235–8.401)	0.014	3.657 (1.247–10.724)	0.018

P<0.05 means statistically significant. CI: confidence interval; pre-VTP IIEF5 score: prevascular-targeted photodynamic International Index of Erectile Function score; repeated VTP: repeated vascular-targeted photodynamic; OR: odds ratio