Hans K:son Blomquist | MENTAL RETARDATION IN CHILDREN : An epidemiological and etiological study of mentally retarded children born 1959-1970 in a northern Swedish county
Information om Mental retardation in children av Hans K:son BlomquistDenna bok ger en grundlig analys av orsaker och mönster kring mental retardation hos barn i Västerbotten. Du får insikter om epidemiologiska trender och betydelsen av genetiska faktorer. Läs den för att förstå hur samhälleliga och medicinska insatser kan påverka livskvaliteten för drabbade barn och deras familjer. En viktig läsning för forskare, vårdpersonal och studenter inom medicin och psykologi.Läs om Mental retardation in children av Hans K:son Blomquist IN AN UNSELECTED series of mentally retarded children in the county of Västerbotten, Sweden, the annual incidence of children with severe mental retardation (SMR) (IQ < 50) and alive at the age of one year decreased from 5.3 per 1,000 in 1959 - 1963 to 3.1 per 1,000 in 1967 -1970. This was mainly due to a decrease in the incidence of Down's syndrome. In parallel the proportion of mothers 35 years of age or more at the birth of the child decreased significantly. The prevalence of children with SMR in 1976 was 3.5 per 1,000. The main cause of the SMR was prenatal in 70 percent, perinatal in 8 percent and postnatal in 1 percent. The cause of the SMR was untraceable in 20 percent of the cases. Associated CNS-handicaps occurred in 52 percent of the cases. The annual incidence of mildly mentally retarded children (IQ 50 - 69) registered at the Bureau for Provision and Services for Mentally Retarded was 4.2 per 1,000 and the prevalence in 1979 was 3.8 per 1,000. The cause of the mild mental retardation (MMR) was untraceable in 43 percent. Prenatal causes were identified in as many as 43 percent. Perinatal causes were found in 7 percent and postnatal causes in 5 percent of the cases. Associated CNS-handicaps occurred in 30 percent of the cases.A syndrome of mental retardation with X-linked inheritance not recognized previously in Sweden was characterized clinically (mainly in boys, machro-orchidism, verbal disabilities) and cytogenetically (a fragile site on the X-chromosomes seen after cui turing in special folic acid deficient media) and found to have a prevalence of 6 percent in the population of severely mentally retarded boys. This makes this syndrome the next most common cause of SMR in boys after Down's syndrome. The chromosomal fragility was also identified in female carriers, which has implications for genetic counselling.Through identification of an untreated Phenylketonurie mother giving birth to five severely mentally retarded children, attention was focused on the risks for the fetus of the growing number of Phenylketonurie women identified neonatally and treated di etarily but untreated after the age of 10 - 15 years.Great improvement in intellectual and social ability was seen in a boy with phenylketonuria although the dietary treatment was not introduced until the age of eight years.Heavy irradiation of a fetus late in gestation caused mental retardation, microcephaly, stunted growth, and eye and teeth abnormalities, although such abnormalities are thought not to result from irradiation after 20 weeks of pregnancy.Data om boken Bindning & skick: Limhäftad. Limhäftad. Tillskrift från förf. på främre omslaget. Gott skick. 8:oÅr: 1982. Omfång: 145 s. : diagr., ill., tab. ; 25 cm Språk: Engelska Författare: Blomquist, Hans K:son Titel: Mental retardation in children Undertitel: An epidemiological and etiological study of mentally retarded children born 1959-1970 in a northern Swedish countyFörlag: Umeå Genre: Medicin Artikelnr: 50178 Mental retardation in children av Hans K:son Blomquist hittar du under genren Medicin inom i kategorin Medicin & hälsa. Hitta fler liknande böcker:Medicin & hälsa Medicin Hitta fler liknande böcker med dessa ämnesord:Pediatrics Clinical e Medical and Health Sciences government publication Sök fler exemplar av denna bokFler böcker av Hans K:son Blomquist
