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Chromosomal aberrations in the mildly mentally retarded
Author(s) -
GÖSTASON R.,
WAHLSTRÖM J.,
JOHANNISSON T.,
HOLMQVIST D.
Publication year - 1991
Publication title -
journal of intellectual disability research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 104
eISSN - 1365-2788
pISSN - 0964-2633
DOI - 10.1111/j.1365-2788.1991.tb01057.x
Subject(s) - mentally retarded , psychology , intellectual disability , psychiatry , medicine , developmental psychology
. Chromosome analyses were performed un 52 mildly mentally retarded adults and a control group representing the non‐retarded population. Chromosomal aberrations were found in 19.2% of the mentally retarded and in 1.9% of the controls. The aberrations in the retarded group consisted of trisomy 21, fragile‐X, sex‐chromosome aberrations and balanced translocations. The Index group included a man with a fragile site Xp22.1. The aberration in the control group consisted of a karyotype with an extra marker chromosome.