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Contributors | |
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Foreword | |
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Acknowledgments | |
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The Evolving Field of Genetic Epidemiology | |
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Introduction | |
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Assessing Genetic Influences on Disease, Human Genetics Concepts, and Genomic Technology | |
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Family-based Study Designs: Linkage, Exome Sequencing and Case-Parent Trios | |
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Genetic Association Studies of Common and Rare Variants, Large-scale Collaborations, and Population Stratification | |
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Gene-Environment Interactions, Epistasis, and Non-Mendelian Genetics | |
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Software and Data Resources | |
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Ethical Issues and Translational Genetic Epidemiology | |
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Conclusion | |
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Assessing Genetic Influences on Diseases and Risk Factors | |
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Introduction | |
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Familial Aggregation Studies | |
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Familial aggregation study designs | |
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Heritability Analysis | |
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Polygenic model | |
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Estimating heritability using twins | |
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Assumptions, biases, and misconceptions in heritability analysis | |
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Conclusion: Heritability and the Polygenic Model in the Genomic Era | |
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Genetic Concepts and Genomic Technology for Genetic Epidemiology | |
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Introduction | |
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Mendelian Inheritance and Complex Traits | |
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Mendel's laws | |
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Modes of inheritance for single genes | |
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Online Mendelian Inheritance in Man (OMIM�) | |
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Complex traits | |
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Hardy-Weinberg Principle | |
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Deviations from Hardy-Weinberg equilibrium | |
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Genetic Code, Gene Structure, and Genetic Markers | |
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Exons, introns, and untranslated regions | |
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Single nucleotide polymorphisms (SNPs) and structural variations | |
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Genetic Linkage and Linkage Disequilibrium | |
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Genetic linkage and recombination | |
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Linkage disequilibrium and haplotypes | |
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Tag SNPs | |
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SNP genotyping platforms | |
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DNA Sequencing Technologies | |
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Three generations of DNA sequencing | |
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Exome sequencing | |
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Study Designs for Common and Rare Genetic Variants | |
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Conclusion | |
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Family Studies in Genetic Epidemiology: From Linkage to Exome Sequencing | |
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Linkage Analysis | |
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Basics of LOD score linkage analysis | |
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Non-parametric linkage analysis | |
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Family-based Association Studies | |
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Linkage and association in families | |
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Case-parent trios and the transmission disequilibrium test (TDT) | |
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Extensions of the TDT | |
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Conclusion | |
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Genetic Association Studies | |
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Introduction to Genetic Association Studies | |
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Study Designs for Candidate Gene Studies | |
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Practical considerations for selecting candidate genes | |
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Complexities of Interpreting Genetic Association Results | |
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Direct, causal relationship | |
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Indirect association due to linkage disequilibrium | |
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False-positive associations | |
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False-negative associations and power | |
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Basics of Genome-wide Association Studies (GWAS) | |
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GWAS case-control studies | |
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Data analysis of GWAS | |
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Large-scale Collaborations: The Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) Consortium | |
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The CHARGE Consortium | |
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CHARGE goals and organization | |
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Genome-wide genotyping methods | |
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Design of CHARGE analyses | |
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Phenotype working groups | |
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Analysis methods | |
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Productivity | |
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Collaborations with non-CHARGE studies and other consortia | |
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Working-group model as innovation | |
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A new era of consortia | |
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CHARGE: past, present, and future | |
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Facilitating large-scale collaborations | |
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Case-Parent Trio Designs in GWAS | |
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Heritability and Allelic Architecture of Complex Traits | |
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Missing heritability in GWAS | |
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Study Designs and Statistical Analysis of DNA Sequencing Data | |
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Study designs for rare genetic variants | |
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Methods for detecting association with rare variants | |
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Conclusion | |
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Population Stratification in Genetic Association Studies | |
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General Concepts | |
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Rationale for GWAS | |
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Population stratification confounding | |
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Detecting Population Stratification | |
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Statistical Methods to Adjust for Global Population Stratification Confounding | |
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Genomic control | |
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Ethnicity adjustment | |
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Principal components adjustment | |
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Estimated ancestry adjustment | |
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Estimated correlation methods | |
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Statistical Methods to Adjust for Local Population Stratification Confounding | |
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Mixing of populations and local population structure | |
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Lactase persistence gene | |
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Controlling for local ancestry | |
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Conclusion | |
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Gene-Environment Interactions and Epistasis | |
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Why Study Interaction? | |
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Models of Interaction | |
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Statistical Interaction and the Problem of Measurement Scale | |
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Statistical analysis of interaction for cohort and case-control studies | |
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Multiplicative and additive measurement scales | |
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Causal modeling applied to interaction | |
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Case-only Study Design | |
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Considerations for case-only studies | |
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Pharmacogenomics | |
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Gene-Environment-wide Interaction Studies (GEW1S) | |
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Harmonization of environmental data | |
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GEWIS data analysis approaches | |
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Epistasis: Interactions Between Genes | |
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Conclusion | |
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Non-Mendelian Genetics | |
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Introduction | |
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Mitochondrial Genetics | |
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De Novo Variation | |
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Parental and Parent-of-origin Effects | |
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DNA Methylation: An Epigenetic Mechanism Underlying Phenotypic Variation | |
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Conclusion | |
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Software and Data Resources for Genetic Epidemiology Studies | |
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Introduction | |
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Software for Genetic Data Analysis | |
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R software | |
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PLINK | |
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Software for association testing in samples from structured populations | |
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Individual ancestry estimation software | |
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Relatedness estimation software for GWAS | |
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Software for power calculations in genetic association studies | |
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Genotype imputation software | |
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An alphabetical list of genetic analysis software | |
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Human Reference Panels and Resources | |
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International HapMap Project (HapMap) | |
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1000 Genomes Project | |
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Human Generic Diversity Panel (HGDP) | |
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Genome Variation Server | |
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Genotype and Phenotype Repositories | |
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Conclusion | |
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Ethical Issues in Genetic Epidemiology | |
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Introduction | |
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Current Regulatory Environment | |
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Trade-offs of Data De-identification | |
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Informed Consent and Respect | |
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Research Governance | |
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Conclusion | |
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Public Health and Clinical Applications of Genetic Epidemiology | |
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Introduction | |
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T1: From Discovery to Candidate Health Application | |
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T2: From Health Application to Evidence-based Guidelines | |
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T3: From Guidelines to Health Practice | |
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T4: From Practice to Population Health Impact | |
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Conclusion | |
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Index | |