| Characteristics of births in each cycle of the bimodal monthly distribution in cystic fibrosis. | |
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MedLine Citation:
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PMID: 7405961 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The bimodal monthly birth distribution of patients with cystic fibrosis (CF) in Victoria, Australia, is shown to be similar within and among sibships, so that intrafamilial concentration of births around March (mode 1) or September (mode 2) cannot explain the observed periodic pattern. Mode 2 children are subject to a higher stillbirth rate and have younger maternal ages than mode 1 children. A sample of persons dying with CF in England and Wales displaying a similar bimodal birth pattern is shown to have a reduced infant survival rate for males of mode 2. These findings suggest that two annual cycles are a more appropriate model than a six-monthly cycle. An attempt is made to equate mode 1 in the northern hemisphere with mode 2 in the southern hemisphere by pointing out the high perinatal death rate in the former and the high stillbirth rate in the latter. |
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Authors:
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C J Brackenridge |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: American journal of medical genetics Volume: 5 ISSN: 0148-7299 ISO Abbreviation: Am. J. Med. Genet. Publication Date: 1980 |
Date Detail:
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Created Date: 1980-10-21 Completed Date: 1980-10-21 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 7708900 Medline TA: Am J Med Genet Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 303-7 Citation Subset: IM |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Child, Preschool Cystic Fibrosis / epidemiology* Demography England Female Humans Infant Male Seasons Wales |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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