Polygenic prediction of the phenome, across ancestry, in emerging adulthood.
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AuthorDocherty, Anna R
Savage, Jeanne E
Salvatore, Jessica E
Moore, Ashlee A
Edwards, Alexis C
Riley, Brien P
Adkins, Daniel E
Webb, Bradley T
Bacanu, Silviu A
Kendler, Kenneth S
Journal titlePsychological medicine
Publication Begin page1814
Publication End page1823
MetadataShow full item record
AbstractIdentifying genetic relationships between complex traits in emerging adulthood can provide useful etiological insights into risk for psychopathology. College-age individuals are under-represented in genomic analyses thus far, and the majority of work has focused on the clinical disorder or cognitive abilities rather than normal-range behavioral outcomes.
This study examined a sample of emerging adults 18-22 years of age (N = 5947) to construct an atlas of polygenic risk for 33 traits predicting relevant phenotypic outcomes. Twenty-eight hypotheses were tested based on the previous literature on samples of European ancestry, and the availability of rich assessment data allowed for polygenic predictions across 55 psychological and medical phenotypes.
Polygenic risk for schizophrenia (SZ) in emerging adults predicted anxiety, depression, nicotine use, trauma, and family history of psychological disorders. Polygenic risk for neuroticism predicted anxiety, depression, phobia, panic, neuroticism, and was correlated with polygenic risk for cardiovascular disease.
These results demonstrate the extensive impact of genetic risk for SZ, neuroticism, and major depression on a range of health outcomes in early adulthood. Minimal cross-ancestry replication of these phenomic patterns of polygenic influence underscores the need for more genome-wide association studies of non-European populations.
CitationDocherty AR, Moscati A, Dick D, Savage JE, Salvatore JE, Cooke M, Aliev F, Moore AA, Edwards AC, Riley BP, Adkins DE, Peterson R, Webb BT, Bacanu SA, Kendler KS. Polygenic prediction of the phenome, across ancestry, in emerging adulthood. Psychol Med. 2018 Aug;48(11):1814-1823. doi: 10.1017/S0033291717003312. Epub 2017 Nov 27. PMID: 29173193; PMCID: PMC5971142.
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