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Cerebral palsy in children born after in vitro fertilization. Is the risk decreasing?
Lund University.
Linköping University, Department of Clinical and Experimental Medicine, Pediatrics . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Paediatrics and Gynecology and Obstetrics, Department of Paediatrics in Linköping.
National Board for Health and Welfare, Stockholm.
National Board for Health and Welfare, Stockholm.
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2010 (English)In: European journal of paediatric neurology, ISSN 1090-3798, E-ISSN 1532-2130, Vol. 14, no 6, 526-530 p.Article in journal (Refereed) Published
Abstract [en]

Background: Infants born after in vitro fertilization (IVF) differ from spontaneously conceived infants in a number of aspects which could increase the risk for future cerebral palsy (CP), e.g., multiple births, preterm births, neonatal complications. Aims: To follow up children conceived by IVF with respect to risk for CP. Methods: Infants born after IVF were identified from all IVF clinics in Sweden 1982-2007. Perinatal characteristics were obtained by linkage with the Medical Birth Register. The presence of CP in children born after IVF and in other children was identified from the Patient Register which contains diagnoses given at hospitalizations or specialist outpatient clinics. The risk for CP after IVF was studied after adjustment for year of birth, maternal age, parity, and smoking, all factors which co-vary both with IVF and with CP. Stratification was made for singletons and multiple births and for various neonatal outcomes. Results: The adjusted odds ratio for CP after IVF was 1.81 (95% confidence interval, 95% CI 1.52-2.13), lower and not statistically significant when singletons or when unlike-sexed twins were analyzed. Stratification for various neonatal characteristics also reduced odds ratios to non-significant levels. For the last few years of the study (2004-2007) when the twinning rate after IVF was less than10%, the odds ratio for CP was 0.97 (95% CI 0.57-1.66). Conclusions: The moderately increased risk for CP was most likely a consequence of an increased risk of neonatal morbidity, notably associated with multiple births.

Place, publisher, year, edition, pages
Elsevier Science B.V., Amsterdam , 2010. Vol. 14, no 6, 526-530 p.
Keyword [en]
Cerebral palsy; In vitro fertilization; Neonatal conditions; Preterm birth
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-63963DOI: 10.1016/j.ejpn.2010.03.007ISI: 000284570200010OAI: diva2:384478
Available from: 2011-01-10 Created: 2011-01-10 Last updated: 2011-01-10

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Finnström, Orvar
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Pediatrics Faculty of Health SciencesDepartment of Paediatrics in Linköping
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