Fathers of children conceived using ART have higher cognitive ability scores than fathers of naturally conceived children.

Human Reproduction
Bernt BratsbergVegard Skirbekk

Abstract

Does paternal cognitive ability differ for children conceived with and without assisted reproductive technology (ART)? Young fathers of ART conceived children tend to score cognitively below their same-age natural conception (NC) counterparts and older (above 35) fathers of ART conceived children tend to score above. Cognitive ability is a genetically and socially transmitted trait, and If ART and NC children have parents with different levels of this trait, then this would in itself predict systematic differences in child cognitive outcomes. Research comparing cognitive outcomes of children with different modes of conception finds conflicting results, and studies may be influenced by selection and confounding. This is a population-based study based on Norwegian data, combining information from the Medical Birth Registry (births through 2012), military conscription tests (birth cohorts 1955-1977) and the population registry. These data allow us to compare the cognitive ability scores of men registered as the father of an ART-conceived child to the cognitive abilities of other fathers and to average scores in the paternal birth cohorts. The population level study included 18 566 births after ART (5810 after ICSI, 12 756 after IV...Continue Reading

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