A meta-regression evaluating the effectiveness and prognostic factors of oral phosphodiesterase type 5 inhibitors for the treatment of erectile dysfunction.
Asian J Androl
; 18(1): 60-5, 2016.
Article
em En
| MEDLINE
| ID: mdl-25966626
ABSTRACT
The effectiveness of phosphodiesterase type 5 inhibitors (PDE5-Is) for erectile dysfunction (ED) varies considerably among trials, but available studies investigating the factors that affect the effectiveness are few and findings are not consistent. A systematic search was performed in PubMed, Cochrane Library, and EMBASE to identify randomized controlled trials comparing PDE5-Is with placebo for the treatment of ED. The methodological quality of included studies was assessed by the Cochrane Collaboration's tool for assessing risk of bias. The associations between prespecified study-level factors and effectiveness were tested by a random effects meta-regression model. This study included 93 trials with 26 139 patients. When all PDE5-Is were grouped together, Caucasian ethnicity was associated with 15.636% (95% confidence interval [CI] 0.858% to 32.579%) increase in risk ratio (RR) for Global Assessment Questionnaire question-1 (GAQ-1), and 1.473 (95% CI 0.406 to 2.338) score increase in mean difference (MD) for posttreatment International Index of Erectile Function-Erectile Function domain score (IIEF-EF), compared to Asian ethnicity. A one-score increase in baseline IIEF-EF was associated with -5.635% (95% CI -9.120% to -2.017%) reduction in RR for GAQ-1, and -0.229 (95% CI -0.425 to -0.042) score decrease in MD for posttreatment IIEF-EF. In conclusion, PDE5-Is are more effective in Caucasians than Asians, and in patients with more severe ED.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Inibidores da Fosfodiesterase 5
/
Disfunção Erétil
Tipo de estudo:
Clinical_trials
/
Diagnostic_studies
/
Prognostic_studies
/
Systematic_reviews
Limite:
Adult
/
Humans
/
Male
Idioma:
En
Revista:
Asian J Androl
Assunto da revista:
MEDICINA REPRODUTIVA
/
UROLOGIA
Ano de publicação:
2016
Tipo de documento:
Article