| Rett syndrome: geographic variation in prevalence in Norway. | |
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MedLine Citation:
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PMID: 9187475 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The prevalence of Rett syndrome is reported for three Norwegian counties (Rogaland, Ostfold and Nordland). The total number of females between 3 and 19 years of age in these counties was 96,920, and among these 21 females with Rett syndrome were identified, yielding a prevalence rate for Rett syndrome of 2.17 per 10,000 girls. One reason for this comparatively high prevalence rate might be that the full spectrum of Rett syndrome variants was included. The quality of the health care system and the awareness of Rett syndrome and its variants among Norwegians physicians also make it unlikely that many case were missed. However, the high total prevalence was caused by a statistically significant larger number of girls with Rett syndrome in Rogaland than in the other two counties. Sixteen of the girls were identified in Rogaland county, which gives a prevalence rate for this county of 3.77 per 10,000 girls. The prevalence rates in the two other counties were 1.05 and 0.77 per 10,000 girls. The geographical distribution of girls with Rett syndrome in Rogaland is probably due to genetic clustering. Geographical mobility in Norway is limited and many families have lived in the same geographical area for generations. An explanation based on genetic clustering is also supported by the fact that several of the girls with Rett syndrome in Rogaland county are known to be related. |
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Authors:
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O H Skjeldal; S von Tetzchner; F Aspelund; G A Herder; B Lofterłd |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Brain & development Volume: 19 ISSN: 0387-7604 ISO Abbreviation: Brain Dev. Publication Date: 1997 Jun |
Date Detail:
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Created Date: 1997-07-28 Completed Date: 1997-07-28 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 7909235 Medline TA: Brain Dev Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 258-61 Citation Subset: IM |
Affiliation:
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Department of Pediatrics, University of Oslo, Rikshospitalet, Norway. olahs@rh.uio.no |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Child Child, Preschool Female Geography Humans Norway / epidemiology Prevalence Rett Syndrome / epidemiology* |
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