Describing the consequences of disorders: stuttering and the International Classification of Impairments,...

The International Classification of Impairments, Disabilities, and Handicaps (ICIDH) proposed by the World Health Organization (WHO, 1980) can be a useful method for describing the experiences of individuals exhibiting speech and language disorders such as stuttering. Unfortunately, the definitions for the terms impairment, disability, and handicap that were previously presented in the stuttering literature have not accurately represented the true purpose of the ICIDH as a tool for describing the consequences of disorders. This paper reviews the history of these terms in the stuttering literature and proposes alternate definitions that are more consistent with the use of the ICIDH elsewhere in the field of communication disorders, as well as within the health-related professions in general. Based on the ICIDH framework, a model is proposed for discussing the outcomes of various types of stuttering treatments in the context of an individual's experience of the stuttering disorder, and the implications for treatment outcomes research using this framework are discussed.