Characterising the Relationship between Fatigue and Depression
Author(s) -
Elizabeth C. Corfield
Publication year - 2017
Language(s) - English
Resource type - Dissertations/theses
DOI - 10.5204/thesis.eprints.110722
Subject(s) - depression (economics) , comorbidity , twin study , association (psychology) , psychology , clinical psychology , genome wide association study , genetic association , psychiatry , genetics , heritability , biology , single nucleotide polymorphism , genotype , psychotherapist , gene , economics , macroeconomics
This dissertation focused on increasing our knowledge and understanding of the comorbidity and genetics of fatigue and depression. Statistical computations, including twin modelling and analysis of genome-wide association data, were conducted to characterise the phenotypic and genetic relationship between fatigue and depression. The high levels of comorbidity observed between fatigue and depression is independent of the traits overlapping symptoms and is likely attributable to the non-causal genetic relationship which exists between the traits. Whereby, a significant proportion of the association between fatigue and depression is explained by shared genetic factors
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