Prevalence and time trends of disabilities in school-age children.

Abstract

BACKGROUND Although the evolution of the prevalence of cerebral palsy is now well documented, much less is known about the evolution of the prevalence of other disabilities such as mental retardation, sensorial defects, autism and psychosis. The aim of this paper is to determine those trends. METHODS A population-based survey was carried out in 1992-1993… (More)

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