| Twinning in New England in the 17th-19th centuries. | |
| | |
MedLine Citation:
|
PMID: 3330389 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Vital records of Saybrook and Plymouth in New England from the 17th century were investigated. Among 8,562 maternities 81 twin maternities were found, the twinning rate being 0.95%. Twinning rate was low at the 1st and 2nd births as compared with the 3rd or later births, and was highest at the 7th and 8th births (1.6%). Twin maternity seemed to be a strong risk factor to terminate reproduction, particularly after 6 or more children had been delivered. The rate of mothers who had any other child ("fertile" mothers) at the 7th or later birth order was significantly lower for twin (13%) than for singleton maternities (63%). Twinning rate also varied by the size of offspring of a mother, and those mothers who had 5 or 6 children showed the highest twinning rate (1.3%). Those fertile mothers who had 7 or more children showed the lowest twinning rate (0.74%), although an exceptionally higher twinning rate was seen at their last births. Elongation of the last birth interval was observed for each group of every family size, and higher twinning rates were generally observed at their last births. Reduction in fecundity and rise in twinning rate seem to have occurred simultaneously at the last stage of the reproductive period of mothers, regardless of their family size. |
| | |
Authors:
|
T Miura; H Kawana; K Nonaka |
Related Documents
:
|
10524459 - Congenital acute megakaryoblastic leukemia (m7) with chromosomal t(1;22)(p13;q13) trans... 11877679 - Cardiac relocation and chest wall reconstruction after separation of thoracopagus conjo... 17470599 - Intrapartum management of twin gestations. 21039209 - Birth weight discordance of twin pairs and their subsequent growth patterns. 3657879 - Respiratory distress syndrome in second-born versus first-born twins. a matched case-co... 6683619 - A longitudinal twin study of stability of components from bayley's infant behavior record. 16546539 - Topical applications of chlorhexidine to the umbilical cord for prevention of omphaliti... 6978779 - The diagnosis of 21-hydroxylase deficiency in a prematurely born infant on the basis of... 17108949 - Upper palaeolithic infant burials. |
Publication Detail:
|
Type: Historical Article; Journal Article |
Journal Detail:
|
Title: Acta geneticae medicae et gemellologiae Volume: 36 ISSN: 0001-5660 ISO Abbreviation: Acta Genet Med Gemellol (Roma) Publication Date: 1987 |
Date Detail:
|
Created Date: 1988-06-29 Completed Date: 1988-06-29 Revised Date: 2004-11-18 |
Medline Journal Info:
|
Nlm Unique ID: 0370314 Medline TA: Acta Genet Med Gemellol (Roma) Country: ITALY |
Other Details:
|
Languages: eng Pagination: 355-64 Citation Subset: IM; Q |
Affiliation:
|
Department of Hygiene, Teikyo University School of Medicine, Tokyo, Japan. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Birth Intervals Birth Order Birth Rate* Family Characteristics Fertility History, 17th Century History, 18th Century History, 19th Century Humans Maternal Age New England Pregnancy, High-Risk Twins* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Excessive twinning in a rural American genealogy: the demographic pedigree.
Next Document: Incidence of twinning in London from 1581 to 1760.