Exposure to environmental tobacco smoke and cognitive abilities among U.S. children and adolescents.In the article "Exposure to Environmental Tobacco Smoke environmental tobacco smoke (ETS/passive smoke), n the gaseous by-product of burning tobacco products, including but not limited to commercially manufactured cigarettes and cigars; contains toxic elements harmful to the health of adults and children and Cognitive Abilities Among U.S. Children and Adolescents," Yolton et al. (2005) stated that the data "indicate an inverse (mathematics) inverse - Given a function, f : D -> C, a function g : C -> D is called a left inverse for f if for all d in D, g (f d) = d and a right inverse if, for all c in C, f (g c) = c and an inverse if both conditions hold. association between ETS ETS Educational Testing Service (nonprofit private educational testing and measurement organization) ETS Emergency Telecommunications Service ETS Electronic Trading System ETS Engineering (&) Technical Services exposure and cognitive deficits Cognitive deficit is an inclusive term to describe any characteristic that acts as a barrier to cognitive performance. The term may describe deficits in global intellectual performance, such as mental retardation, or it may describe specific deficits in cognitive abilities among children.... " They do not. They indicate an inverse association between ETS exposure and scores, but a direct association between ETS exposure and cognitive deficits. The author declares he has no competing financial interests. REFERENCE Yolton K, Dietrich K, Auinger P, Lanphear BP, Hornung R. 2005. Exposure to environmental tobacco smoke and cognitive abilities among U.S. children and adolescents. Environ Health Perspect 113:113:98-103. Editor's note Editor's Note (foaled in 1993 in Kentucky) is an American thoroughbred Stallion racehorse. He was sired by 1992 U.S. Champion 2 YO Colt Forty Niner, who in turn was a son of Champion sire Mr. Prospector and out of the mare, Beware Of The Cat. Trained by D. : In accordance with journal policy, Yolton et al. were asked whether they wanted to respond to this letter, but they chose not to do so. Phillip Petersen Queensland Medical Laboratory and Queensland University of Technology Rochedale, South Queensland, Australia E-mail: philpetersen@optusnet.com.au |
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