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- Title
Maternal Factors and Multiple Births Are Main Cause Of Poor Birth Outcomes After In Vitro Fertilization.
- Authors
Gerstein, L.
- Abstract
Twenty-seven percent of Swedish women who become pregnant after undergoing in vitro fertilization have a multiple birth, compared with 1% of women overall. Babies conceived via in vitro fertilization are more likely than others to be born preterm, to have a low birth weight and to have congenital malformations. However, the results of a retrospective study suggest that these outcomes are mostly attributable to maternal characteristics and the occurrence of multiple births, rather than to in vitro fertilization. To calculate the risks of adverse pregnancy and infant health outcomes after in vitro fertilization, the researchers compared data on all 4,517 births following in vitro fertilization in Sweden from 1982 to 1995 with data on all 1.5 million births in the general population during that time period. The data came from national registries of births, malformations, cancers and deaths. For women in the in vitro fertilization group, the researchers also gathered information on their fertility treatment from the clinic that provided it.
- Subjects
MULTIPLE birth; FERTILIZATION in vitro; LOW birth weight; PREGNANCY; HUMAN abnormalities; MEDICAL research
- Publication
Family Planning Perspectives, 2000, Vol 32, Issue 3, p149
- ISSN
0014-7354
- Publication type
Article
- DOI
10.2307/2648168