The recurrence risks for mild idiopathic mental retardation.
نویسندگان
چکیده
منابع مشابه
The recurrence risks for mild idiopathic mental retardation.
A genetic study of children attending ESN(M) schools in Coventry has shown a recurrence risk of idiopathic mental retardation in sibs lying between 1 in 4 and 1 in 5. There was also a prevalence of mental retardation in other relatives that was greater than the population prevalence, and was less for second degree relatives than for first degree, and less still for third degree relatives. Recur...
متن کاملRecurrence risks in mental retardation.
Despite improvements in diagnostic techniques and progress made in mapping genes associated with syndromal mental handicap, the estimation of recurrence risks in non-syndromal mental retardation is still dependent on empirical data. Unfortunately, few studies are available to guide the clinician and their results differ significantly. For example, recurrence risks to all sibs of a male index pa...
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EDITOR—In 1998, Crow and Tolmie 1 drew attention to the problem of giving recurrence risks to families with undiag-nosed mental retardation. Published empirical risks vary widely and are based on data which have been collected in many diVerent ways and are decades old. Clinical practice in the UK, as derived from their postal survey, 1 showed similarly wide variations. Thus, in a standardised s...
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A clinical and family study was carried out in 169 children attending schools for the mildly mentally retarded in Southampton to assess the prevalence of recognised medical risk factors; 71 children (42%) had such risk factors. These were prenatal in 22, perinatal in 41, and postnatal in eight. Risk factors of possible, but less certain, significance were found in a further 63 children (37%). I...
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Mental retardation is a heterogeneous condition, affecting 1-3% of general population. In the last few years, several emerging clinical entities have been described, due to the advent of newest genetic techniques, such as array Comparative Genomic Hybridization. The detection of cryptic microdeletion/microduplication abnormalities has allowed genotype-phenotype correlations, delineating recogni...
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ژورنال
عنوان ژورنال: Journal of Medical Genetics
سال: 1989
ISSN: 1468-6244
DOI: 10.1136/jmg.26.4.260