Abstract
Parental ages and birth order were analysed in 16 sporadic cases of inv dup (15) using the method of Smith. A significant maternal age effect was apparent (dm = 5.989, SE 1.86; df = 2.02, SE 2.496; db = 0.138, SE 0.46).
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Birth Order
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Chromosome Aberrations / genetics*
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Chromosome Disorders
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Chromosomes, Human, 13-15 / ultrastructure*
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Female
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Humans
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Infant, Newborn
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Intellectual Disability / genetics
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Male
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Maternal Age*
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Middle Aged
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Paternal Age*
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Regression Analysis
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Trisomy*