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Original Article

Challenge of Epidemiological Research in the Developing World: Overview: Reto a la investigacion epidemiológies en el mundo en desarrollo: Una revision

Pages 178-183 | Received 07 Jun 1999, Accepted 13 Oct 1999, Published online: 07 Jul 2009
 

Abstract

Listing the eight most important aspects of epidemiological research relevant to hearing loss, this paper reviews some of the difficulties encountered in trying to do such research in the developing world. Various research formats are discussed. This paper concludes with a review of what has been reported in the world's literature about the incidence and prevalence of sensorineural hearing loss in children. The average finding from 34 nations is 1.368 hearing impaired per 1,000.

Sumario

Este reporte revisa algunas de las dificultades encon-tradas al intentar la realización de estudios epidemiológicos en el mundo en desarrollo, presentando, además, un listado de los ocho aspectos más impor-tantes de la investigación epidemiológica, relevantes para la sordera. El artiAculo concluye con una revisión de lo que ha sido reportado en la literature mundial sobre la incidencia y prevalencia de los trastornos sen-sorineurales en niños. El hallazgo promedio de alteraciones auditivas en 34 naciones es de 1.368/1000.

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