This study explored the utility of subdividing mental retardation into groups based on the presence of other neurological conditions.
Data were abstracted from birth certificates as part of a case-control study of mental retardation among 10-year-old children.
The study sample included 458 case children and 563 control children selected from public schools.
Case children were subdivided on the basis of intelligence quotient (IQ) score and the presence of other neurological conditions.
Other neurological conditions were more common with severe mental retardation than with mild mental retardation.
Regardless of IQ levels or the presence of other neurological conditions, boys were more likely than girls to have mental retardation.
Older mothers were more likely than younger mothers to have a child with mental retardation accompagnied by another neurological condition.
High birth order, Black race, and low maternal education were associated with a higher prevalence of isolated metal retardation.
These findings suggest that socidemographic risk factors for mental retardation vary according to the presence of other neurological conditions and that subdivisions based on medical or physical criteria may be useful in epidemiologic studies of mental retardation.
Mots-clés Pascal : Arriération mentale, Epidémiologie, Statut socioéconomique, Démographie, Facteur risque, Association, Enfant, Homme, Age scolaire, Géorgie, Etats Unis, Amérique du Nord, Amérique, Système nerveux pathologie, Déficience intellectuelle, Atlanta
Mots-clés Pascal anglais : Mental retardation, Epidemiology, Socioeconomic status, Demography, Risk factor, Association, Child, Human, School age, Georgia, United States, North America, America, Nervous system diseases, Intellectual deficiency
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 95-0220399
Code Inist : 002B18D04A. Création : 09/06/1995.