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Query: UMLS:C0025362 (mental retardation)
 15,878 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Nonspecific mental retardation (i.e., mental retardation with no known etiology) at all levels of functioning was investigated in the population of British Columbia, with ascertainment through the British Columbia Health Surveillance Registry. The age-specific prevalence of nonspecific retardation for the 15- to 29-year age group, where ascertainment was best, was 4.4 per 1,000 population at year-end 1978. A minimum incidence of 5.2 per 1,000 male live births and 4.0 per 1,000 female live births was calculated for the 1952-1965 birth cohort. Data on the number of cases associated with either microcephalus, hydrocephalus, epilepsy, or cerebral palsy were presented. Seventy-three percent of the cases with mild mental retardation had no associated disability, whereas only 26.9 percent of profoundly retarded cases were without any of these conditions. Survival rates varied with respect to the level of mental retardation.
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PMID:Nonspecific mental retardation in British Columbia as ascertained through a registry. 683 41

A series of children with mild mental retardation (171 children, IQ 50-69) born in 1959-1970 in a northern Swedish county and registered by the Board for Provisions and Services to the Mentally Retarded were analysed retrospectively. The mean annual incidence of mild mental retardation in registered children alive at the age of one year decreased during the period 1959-1970 and for the whole period was 4.2 per 1000, compared with 3.9 per 1000 for severe mental retardation in the same period of time and area. Ten children once classified as mildly mentally retarded made considerable intellectual progress and after some time no longer needed special help from the authorities. There was a pronounced male excess in the total series (1.8:1) and in all the main aetiological groups. Only small differences were found in mean birth weights, gestational age and maternal age in the main aetiological groups. In the series as a whole, however, there was an increased frequency of children small for gestational age. Prenatal causes were considered relevant in 43 per cent, perinatal in 7 per cent, and postnatal in 5 per cent. In 2 per cent there was a psychosis. In 43 per cent the aetiology could not be traced. Genetic causes were found in 31 per cent; in 8 per cent there was a chromosomal aetiology, in a further 8 per cent a mutant gene disorder and in 15 per cent the aetiology were considered multifactorial, i.e. at least one first-degree relative also had mental retardation and in both cases the cause of the retardation was unknown. Thirty per cent of the children had associated CNS handicaps, epilepsy (16 per cent) being the most frequent.
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PMID:Mild mental retardation in children in a northern Swedish county. 697 47

A survey of state departments of education revealed wide variations in mental retardation terminology, definition, and classification variables. The relationship of survey variables and demographic characteristics of states with school-system prevalence of mental retardation was analyzed. Survey variables such as mental retardation definition, adaptive behavior measurement, and IQ cutoff score were largely unrelated to school-system prevalence. Demographic characteristics based on summary data for states on variables such as per capita income, educational level, and rate of illiteracy were highly related to school-system prevalence. Caution was recommended in interpretation of results based on ecological correlations, i.e., correlations based on group summaries rather than individual data. The results were seen as further indication of the relative, social-system nature of mild mental retardation.
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PMID:Relationship of state educational criteria and demographic variables to school-system prevalence of mental retardation. 707 57

A 5-year-old male with the Aarskog syndrome is described. He had abnormal facies, short stature, short fingers with interdigital webbing, a saddle type scrotum and mild mental retardation. In addition, he had isolated growth hormone deficiency as evidenced by the insulin, arginine, and propranolol-glucagon tests. An arginine test after short-term stimulation with estrogen further supported this diagnosis. His mother had minor abnormalities of the hands and feet, and slight mental retardation.
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PMID:Aarskog syndrome with isolated growth hormone deficiency. 722 81

This study investigated the occupational choice process according to the special needs of the young adult with mild mental retardation. The study was guided by specific assumptions developed after a review of the literature concerning the condition of mental retardation and occupational role development. Propositions were developed and a model was constructed to illustrate the relationships between components of the occupational choice process and factors affecting occupational role development. A case study is presented to illustrate that the theory could be applied to a practical situation and to illustrate those areas for occupational therapy intervention.
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PMID:Occupational role development in the young adult with mild mental retardation. 736 72

We report on a 22-year-old woman and her 21-year-old brother with mild mental retardation, long face, prominent forehead, retrognathia, and (relative) macrocephaly. At birth they were small for date, their length is now below the 10th centile. Chromosome analysis demonstrated a nearly pure trisomy 1q42 --> qter in both patients due to unbalanced segregation of a paternal reciprocal balanced translocation 46,XY,t(1;15) (q42;p11). This is the second report of a nearly pure trisomy 1q42 --> qter. When comparing the manifestations of our patients with those of other reported cases we conclude that the most characteristic clinical manifestations of this syndrome are macrocephaly, prominent forehead, micro/retrognathia, large fontanelle, intrauterine growth retardation, postnatal growth retardation, and mental retardation.
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PMID:Trisomy 1q42 --> qter in a sister and brother: further delineation of the "trisomy 1q42 --> qter syndrome". 757 62

Eugenics refers to the investigation of means of social control to improve the mental or physical qualities of future generations. The present study investigated whether the self-reported attitudes toward mental retardation and eugenics of a sample of 572 respondents would vary as a function of (I) severity of the mental retardation attitude referent; and (2) respondent sociodemographic characteristics. Among the respondents, 380 were health and human service providers (66% upper division undergraduate students and 34% graduate level professionals) and 192 were upper division undergraduate students majoring in fields other than health and human services. The results supported these conclusions: (1) psychometric characteristics of the scales used to measure attitudes were adequate; (2) increasing mental retardation severity was related to increasing endorsement of eugenic principles, independent of global attitudes toward people with mental retardation; and (3) respondent education was related to the expression of eugenic attitudes toward mild mental retardation, while familiarity with people with mental retardation was related to the expression of eugenic attitudes toward moderate and profound mental retardation.
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PMID:Influence of mental retardation severity and respondent characteristics on self-reported attitudes toward mental retardation and eugenics. 757 89

We report on a 10 1/2-years-old patient with clinical manifestations of Peters'-Plus syndrome. The patient had Peters' anomaly, slightly arched eyebrows, long eyelashes, a broad nasal tip; malformed and prominent ears, cleft lip and palate, brachydactyly, fingertip pads, severe growth deficiency, and mild mental retardation. Peters' anomaly is a defect of the anterior chamber of the eye, including central corneal opacity, thinning of the posterior aspect of the cornea and iridolenticulocorneal adhesions. Peters'-Plus syndrome is a disorder in which patients with Peters' anomaly are also found to have short stature, brachymedia, abnormal ears, cleft lip and palate, and mental retardation. Our patient showed Peters'-Plus syndrome associated with some clinical manifestations of the Kabuki make-up syndrome.
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PMID:Peters'-Plus syndrome: report on an unusual case. 761 2

External memory strategies (e.g., moving objects) were investigated in 11- and 17-year-old children with mild mental retardation and 7-, 9-, 11- and 17-year-old children without mental retardation (N = 95). In an external memory task, after hearing from 1 to 7 sentences, subjects placed objects in specified spatial locations. In the verbal memory task, subjects recalled sentences orally. Target-oriented strategies increased with the number of sentences and were positively related to accuracy. There was no difference between children with mental retardation and their age peers in object-oriented strategies. For all groups, external strategies were used more frequently than verbal strategies. These results show that children with mental retardation have more strategy competencies than reported in studies of covert verbally based strategies.
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PMID:External and verbal strategies in children with and without mild mental retardation. 769 79

The symptomatology of psychiatric inpatients with mild mental retardation was compared with that of a matched sample of inpatients without mental retardation. An integration of the developmental position on mental retardation with the developmental approach to adult psychopathology generated the hypotheses that, compared to patients without mental retardation, patients with mild mental retardation would display (a) more symptoms indicative of turning against others and fewer symptoms indicative of turning against the self, (b) more symptoms involving expression in action rather than thought, and (c) psychotic symptom pictures that more frequently involve hallucinations without delusions and infrequently involve delusions alone. All hypotheses were confirmed.
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PMID:Developmental differences in the symptomatology of psychiatric inpatients with and without mild mental retardation. 769 82


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