title: Maturational rate of Tokyo children with and without mental retardation.
abstract: The maturational rate of Tokyo children with and without mental retardation (ns = 175 and 249, respectively) was compared by means of longitudinal data on height covering the age period 6 to 15 years. Menarcheal age was obtained for 292 girls with and 262 girls without mental retardation. Results showed that the children with mental retardation had a lower growth spurt in height during puberty but did not differ in maturational rate defined by age at the pubertal height spurt or age at menarche.
authors.affiliation: Department of Educational Research, Stockholm Institute of Education, Sweden.
authors.forename: G W
authors.initials: GW
authors.lastname: Lindgren
authors.forename: H
authors.initials: H
authors.lastname: Katoda
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001827:Body Height; D002648:Child; D002657:Child Development / Q000502:physiology*; D002658:Developmental Disabilities / Q000150:complications*; D004519:Education, Special; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000150:complications*; D007564:Japan; D008137:Longitudinal Studies; D008297:Male; D008572:Menarche; D012574:Schools; D013334:Students / Q000523:psychology*