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  • Title: [Equivalence studies in cardiovascular diseases].
    Author: Barbieri P, Marubini E.
    Journal: Ital Heart J Suppl; 2004 Apr; 5(4):267-75. PubMed ID: 15346693.
    Abstract:
    An increasing number of equivalence and non-inferiority trials appeared in recent years among randomized clinical trials, particularly for the evaluation of efficacy of treatments in cardiovascular medicine. These studies are characterized by remarkable methodological issues and important ethical implications. The aim of this review was to underscore some topic methodological problems: setting the equivalence boundary, the special logic used to establish equivalence, and the determinants of sample size. A Medline search was performed in order to identify the main problems in study design and in the interpretation of results of the equivalence and non-inferiority trials in cardiovascular diseases.
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