How long do patients with erectile dysfunction continue to use sildenafil citrate? Dropout rate from treatment course as outcome in real life
Autor: | Hitoshi Tanda, Mikio Koroku, Toshikazu Nitta, Shigeki Onishi, Shuji Kato, Yoshikazu Sato |
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Rok vydání: | 2007 |
Předmět: |
medicine.medical_specialty
business.industry Sildenafil Proportional hazards model Urology Dropout (communications) medicine.disease Surgery Disease course chemistry.chemical_compound Erectile dysfunction chemistry Internal medicine Medicine In real life Significant risk Medical prescription business |
Zdroj: | International Journal of Urology. 14:339-342 |
ISSN: | 0919-8172 |
DOI: | 10.1111/j.1442-2042.2007.01608.x |
Popis: | Objectives: To study the dropout rate for use of sildenafil after initial prescription and during successful treatment to clarify their risk factors. Methods: A total of 1036 patients with erectile dysfunction who were treated with sildenafil were analyzed. The dropout rate during successful treatment and its risk factors were assessed using the Kaplan–Meier method and Cox proportional hazards model, respectively. Results: Thirty-one percent (n = 322) of the patients dropped out after the initial prescription. The cumulative dropout rate during successful treatment at 3 years after starting usage was 48%. A lower International Index of Erectile Function (IIEF-5) score before treatment was a significant risk factor for dropout during a successful treatment course (P |
Databáze: | OpenAIRE |
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