Handedness preference was assessed in 205 boys with gender identity disorder and 205 clinical control boys referred for other reasons. Boys with gender identity disorder were significantly more likely to be left-handed than the clinical control boys (19.5% vs. 8.3%, respectively). The boys with gender identity disorder, but not the clinical control boys, also had a significantly higher rate of left-handedness compared to three independent, general population studies of nonreferred boys (11.8%; N = 14,253) by Hardyck, Goldman, and Petrinovich (1975), Calnan and Richardson (1976), and Eaton, Chipperfield, Ritchot, and Kostiuk (1996). Left-handedness appears to be a behavioral marker of an underlying neurobiological process associated with gender identity disorder in boys.
Occupational therapists frequently work with clients who are challenged by chronic disabilities that may often lead to handicaps. Consequently, chronicity and possible resulting handicaps are matters of concern for occupational therapists in all domains, including: practice, research and education. In 1980 the World Health Organization put forth a classification scheme to capture the long‐term consequences of disease: the International Classification of Impairments, Disabilities, and Handicaps (ICIDH). Its use within occupational therapy was advocated. They showed that the constructs of this classification system mirrored those of occupational therapy's occupational performance model. More recently, a proposal for the revision of the ICIDH (ICIDH‐PR) has been advanced. This proposal is consistent with the enablement and occupational competence models. Within this proposed model, occupational therapy is concerned with enabling clients to interact optimally within their chosen environments. This paper presents a brief review of a selected portion of the international literature on the ICIDH and introduces the proposed revision of the ICIDH for occupational therapy. The structure of this proposed classification is compared with the occupational therapy models. The implications that the use of the ICIDH‐PR will have for occupational therapy are also addressed.
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