Genetic Risk Factors for Poor Cognitive Development in Children With Low Birth Weight

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Abstract

Low birth weight is an ongoing public health problem with severe consequences for those affected, including early morbidity and mortality and elevated risk for lifelong deficits in cognitive function. These deficits can be ameliorated by early intervention in many cases. To contribute to criteria for earlier identification of at-risk children prior to the onset of delays or deficits, we examined relationships between three gene candidates—SLC6A4, BDNF, COMT—and cognitive outcomes at school age in a secondary analysis of existing data from a nationally representative cohort. Single nucleotide polymorphism rs4074134, a variant of BDNF, and a rare insertion/deletion in the intron region of SLC6A4 were significant predictors of cognitive performance. Our final model predicted 17% of the variance in composite cognitive test scores among children with low birth weight at school age (F = 96.36, p

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Blair, L. M., Pickler, R. H., Gugiu, P. C., Ford, J. L., Munro, C. L., & Anderson, C. M. (2020). Genetic Risk Factors for Poor Cognitive Development in Children With Low Birth Weight. Biological Research for Nursing, 22(1), 5–12. https://doi.org/10.1177/1099800419869507

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