Twinning rate in spontaneous abortions.
Year: 1983
Type: article
Study design: Observational Study
Abstract: An unselected series of spontaneous abortions and their mothers were karyotyped with Q-bands to obtain a frequency of twin conceptions lost during the first trimester. Among 661 spontaneous abortions, 15 twin pairs were identified including two sets of conjoined twins. Analysis of Q-band variants permitted the exclusion of cases with two cell lines that could be attributed to maternal contamination or mosaicism. The twinning rate among spontaneous abortions was 1/44 compared with 1/103 live births and stillbirths in the Ontario population. If Weinberg's differential method is applied to these data, the frequency would be as high as 1/30 under the assumption that the incidence of monozygotic twins among abortions is the same as that for live births.
Source: Europe PMC (PubMed Central)
Authors: I A Uchida, V C Freeman, M Gedeon, J Goldmaker
Language: English
Field: Medicine
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W2308050724