![]() The families have made use of the same range of services including speech and language therapy, physiotherapy and occupational therapy. This study, like the earlier ones, gives the picture of very similar health and developmental difficulties for children with Mosaic Down syndrome but possibly to a There was a tendency for the children with Mosaic Down syndrome to reach all developmental milestones earlier except in the area of speech and language development. When compared with children with standard Down syndrome, Over, confirming that the presence of Mosaic Down syndrome can be expected to delay development in all areas. The progress of the children with Mosaic Down syndrome was delayed compared to their brothers and sisters on all developmental milestones except age of first rolling The researchers at Virginia have compared the children with Mosaic Down syndrome with their brothers and sisters and also with children with standard Down syndrome. An individualĬhild with Mosaic Down syndrome may show less developmental delay than a child with standard Down syndrome or they may not.Īnd a more recent study of a larger group of 45 children carried out in the USA by researchers at the Medical College of Virginia, Virginia Commonwealth University,Ĭan be found on the website of the International Mosaic Down Syndrome Association ( ![]() These studies are rather dated and I do not think that IQ measures have much practical value, but I am using them to illustrate the issues facing parents. Children with either diagnosis may be represented in the Standard Down syndrome will score higher than some children with Mosaic Down syndrome, even if the averages indicate that the latter group may be less affected as aĪn illustration of the overlap of the IQ measures for children with Mosaic and standard Down syndrome. The range of scores for children with standard Down syndrome and those with Mosaic Down syndrome will, therefore overlap and some children with The average IQ for the standard Down syndrome group may be 52, but again some children will score 70 or moreĪnd some 40 or less. For example, the average IQ score for the Mosaic Down syndromeīut some children may score 70 or more and some 40 or less. However, group averages are not very helpful when the variability of children within the group is large. One American study of 30 childrenĬompared them with matched children with standard Down syndrome and their findings suggest that groups of children with Mosaic Down syndrome have a higher average IQ. There are at least two published studies that suggest that, while they have a range of health and developmentalĭifficulties which are similar to children with standard Down syndrome, these difficulties may be less severe. Makes life very difficult for their parents. Little is known about the development of children with Mosaic Down syndrome and how it may differ from the development of children with standard Down syndrome, which A few children, 1 or 2 in a 100, have the translocationįorm of Down syndrome, when the extra chromosome 21 material is attached to another chromosome. Lines with the extra chromosome and some cell lines that are not affected and have the usual 46 chromosomes. Children with Mosaic Down syndrome have some cell Children with standard Down syndrome have an extraĬopy of chromosome 21 in every cell and this is the usual profile for some 96 in 100 children with the diagnosis. It is estimated that 2 or 3 children in every 100 children diagnosed as having Down syndrome have the Mosaic form. The reader is referred to the personal case histories of children on this site as they make clear the uncertainty that families feel when they receive theĭiagnosis and the very varied developmental profiles of children with Mosaic Down syndrome. At present, it is difficult to find enough children in any locality to study theirĭevelopment. ![]() More detailed information on the needs of these children and their families. ) has provided parents with a chance to share experiences with other parents and if many families worldwide join the Association it will be possible to begin to gain ![]() The establishment of the Association is an important step, for both parents and professionals, as we do not know enough about the effects of In October 2003, the first international conference on Mosaic Down Syndrome will be held in Florida, USA, following the recent establishment of an International Mosaicĭown Syndrome Association. (2002) What do we know about the needs of children with Mosaic Down syndrome and their families?. International Mosaic Down Syndrome Association) will lead to progress.īuckley, S, and Bird, G. Mosaic Down syndrome is rare and families feel lost when they receive this diagnosis - often weeks or months after the child's birth. What do we know about the needs of children with Mosaic Down syndrome and their families? ![]()
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