Organization and administration of the NIDCD/VA Hearing Aid Clinical Trial

Autor: David J. Williams, Lynn Leuthke, William G. Henderson, Vernon D. Larson
Rok vydání: 2002
Předmět:
Zdroj: Ear and hearing. 23(4)
ISSN: 0196-0202
Popis: This article describes the organization and administration of the NIDCD/VA Hearing Aid Clinical Trial. The trial involved a total of 360 patients with bilateral, sensorineural hearing loss from eight VA Medical Centers to study three different hearing aid circuits in a three-period, three-treatment crossover design. Strong central coordination of such a complex multi-center clinical trial is essential to its success. The trial took more than 5 years to design, implement, and complete. This timeline is also described.
Databáze: OpenAIRE