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The association between type of conception through medically assisted reproduction and childhood cognition: a Danish population-wide cohort study 
Stockholm University, Faculty of Social Sciences, The Swedish Institute for Social Research (SOFI). ROCKWOOL Foundation, Denmark.ORCID iD: 0000-0003-0544-9977
Number of Authors: 12023 (English)In: European Journal of Public Health, ISSN 1101-1262, E-ISSN 1464-360X, Vol. 33, no 6, p. 1020-1026Article in journal (Refereed) Published
Abstract [en]

Background: Previous research has indicated that children conceived through medically assisted reproduction (MAR) generally have cognitive outcomes comparable to or better than naturally conceived children. However, previous studies have been limited in their ability to examine this relationship at a population level and consider variations across different types of MAR. Methods: This study utilizes data from all live births in Denmark between 2006 and 2009 (n = 259 608), including a subset of births resulting from MAR conceptions (n = 13 566). The dependent variable is the standardized test scores obtained in the second and third grades of primary schools. A comparison is made between the test scores of children spontaneously conceived (SC) and those conceived through intrauterine insemination (IUI) and assisted reproductive technologies (ART). Ordinary least squares regressions are employed, with a baseline model adjusted only for birth year, as well as models that additionally account for conception-related confounders and sociodemographic family characteristics. Results: In the baseline analysis, ART- and IUI-conceived children displayed better test scores compared with their SC peers. However, after adjusting for relevant factors, ART-conceived children performed worse than SC peers, while IUI-conceived children performed equally well as SC peers and better than ART-conceived children. Conclusions: These results likely reflect differences in the selection process of potential parents into the type of MAR, as well as the consequences of variations in fecundability. Nevertheless, the differences observed across conception types were overshadowed by test score disparities in socioeconomic background.

Place, publisher, year, edition, pages
2023. Vol. 33, no 6, p. 1020-1026
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Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:su:diva-220985DOI: 10.1093/eurpub/ckad123ISI: 001032555700001PubMedID: 37480261OAI: oai:DiVA.org:su-220985DiVA, id: diva2:1796804
Available from: 2023-09-13 Created: 2023-09-13 Last updated: 2023-12-13Bibliographically approved

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Fallesen, Peter

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