Biomaterial Database

Etiological study of mental retardation in Budapest, Hungary. 1980

A Czeizel, and A Lányi-Engelmayer, and L Klujber, and J Métneki, and G Tusnády

The first complex etiological study of mental retardation in Budapest was carried out with 1,364 children ages 7 to 14 years. Of this sample, 1,060 attended special schools for mentally retarded children (47.5 percent), and 304 children lived in one of two residential training centers for moderately and severely retarded persons. Apart from the cases of unknown etiology (12.6 percent) and those who turned out to be "normal" (6.5 percent), approximately 50 percent of the index patients were classified as pathologically retarded, and the other 50 percent as familial--culturally retarded. Strictly genetic disorders (inborn errors of metabolism, malformation syndromes caused by single mutant genes, and autosome and sex chromosome abnormalities) accounted for 3.1, 4.0, 4.0, and 1.3 percent, respectively, of all cases. Pre-, peri-, and postnatal exogenic damage occurred in 1.8, 20.4, and 6.8 percent of the cases, respectively. Results were compared with findings from previous surveys in the United States and the United Kingdom.

UI	MeSH Term	Description	Entries
D008607	Intellectual Disability	Subnormal intellectual functioning which originates during the developmental period. This has multiple potential etiologies, including genetic defects and perinatal insults. Intelligence quotient (IQ) scores are commonly used to determine whether an individual has an intellectual disability. IQ scores between 70 and 79 are in the borderline range. Scores below 67 are in the disabled range. (from Joynt, Clinical Neurology, 1992, Ch55, p28)	Disability, Intellectual,Idiocy,Mental Retardation,Retardation, Mental,Deficiency, Mental,Intellectual Development Disorder,Mental Deficiency,Mental Retardation, Psychosocial,Deficiencies, Mental,Development Disorder, Intellectual,Development Disorders, Intellectual,Disabilities, Intellectual,Disorder, Intellectual Development,Disorders, Intellectual Development,Intellectual Development Disorders,Intellectual Disabilities,Mental Deficiencies,Mental Retardations, Psychosocial,Psychosocial Mental Retardation,Psychosocial Mental Retardations,Retardation, Psychosocial Mental,Retardations, Psychosocial Mental
D009154	Mutation	Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.	Mutations
D001925	Brain Damage, Chronic	A condition characterized by long-standing brain dysfunction or damage, usually of three months duration or longer. Potential etiologies include BRAIN INFARCTION; certain NEURODEGENERATIVE DISORDERS; CRANIOCEREBRAL TRAUMA; ANOXIA, BRAIN; ENCEPHALITIS; certain NEUROTOXICITY SYNDROMES; metabolic disorders (see BRAIN DISEASES, METABOLIC); and other conditions.	Encephalopathy, Chronic,Chronic Encephalopathy,Chronic Brain Damage
D001928	Brain Diseases, Metabolic	Acquired or inborn metabolic diseases that produce brain dysfunction or damage. These include primary (i.e., disorders intrinsic to the brain) and secondary (i.e., extracranial) metabolic conditions that adversely affect cerebral function.	Central Nervous System Metabolic Disorders,Encephalopathies, Metabolic,Metabolic Disorders, Brain,Acquired Metabolic Diseases, Brain,Acquired Metabolic Diseases, Nervous System,Acquired Metabolic Encephalopathies,Brain Diseases, Metabolic, Acquired,Brain Disorders, Metabolic,Brain Disorders, Metabolic, Acquired,Brain Syndrome, Metabolic,Brain Syndrome, Metabolic, Acquired,CNS Metabolic Disorders,CNS Metabolic Disorders, Acquired,Encephalopathy, Metabolic, Acquired,Metabolic Brain Diseases,Metabolic Brain Diseases, Acquired,Metabolic Brain Syndrome,Metabolic Brain Syndrome, Acquired,Metabolic Brain Syndromes,Metabolic Brain Syndromes, Acquired,Metabolic Diseases, Acquired, Nervous System,Metabolic Disorder, Central Nervous System, Acquired,Metabolic Disorders, CNS,Metabolic Disorders, CNS, Acquired,Metabolic Disorders, Central Nervous System,Metabolic Encephalopathies,Nervous System Acquired Metabolic Diseases,Acquired Metabolic Encephalopathy,Brain Disease, Metabolic,Brain Disorder, Metabolic,Brain Metabolic Disorder,Brain Metabolic Disorders,CNS Metabolic Disorder,Encephalopathies, Acquired Metabolic,Encephalopathy, Acquired Metabolic,Encephalopathy, Metabolic,Metabolic Brain Disease,Metabolic Brain Disorder,Metabolic Brain Disorders,Metabolic Disorder, Brain,Metabolic Disorder, CNS,Metabolic Encephalopathies, Acquired,Metabolic Encephalopathy,Metabolic Encephalopathy, Acquired
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002869	Chromosome Aberrations	Abnormal number or structure of chromosomes. Chromosome aberrations may result in CHROMOSOME DISORDERS.	Autosome Abnormalities,Cytogenetic Aberrations,Abnormalities, Autosome,Abnormalities, Chromosomal,Abnormalities, Chromosome,Chromosomal Aberrations,Chromosome Abnormalities,Cytogenetic Abnormalities,Aberration, Chromosomal,Aberration, Chromosome,Aberration, Cytogenetic,Aberrations, Chromosomal,Aberrations, Chromosome,Aberrations, Cytogenetic,Abnormalities, Cytogenetic,Abnormality, Autosome,Abnormality, Chromosomal,Abnormality, Chromosome,Abnormality, Cytogenetic,Autosome Abnormality,Chromosomal Aberration,Chromosomal Abnormalities,Chromosomal Abnormality,Chromosome Aberration,Chromosome Abnormality,Cytogenetic Aberration,Cytogenetic Abnormality
D004495	Education of Intellectually Disabled	The teaching or training of those individuals with subnormal intellectual functioning.	Education of Mentally Defective,Education of Mentally Retarded,Education, Mentally Retarded,Mentally Retarded Education,Disabled Education, Intellectually,Disabled Educations, Intellectually,Intellectually Disabled Education,Intellectually Disabled Educations,Mentally Defective Education
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006814	Hungary	A country in Europe, northwest of Romania, south of Slovakia, and east of Austria. The capital is Budapest.
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths