Case-control and case-only designs with genotype and family history data: Estimating relative risk, residual familial aggregation, and cumulative risk

2006-03-01
Chatterjee, N
Kalaylıoğlu Akyıldız, Zeynep Işıl
Shih, JH
Gail, MH
In case-control studies of inherited diseases, participating subjects (probands) are often interviewed to collect detailed data about disease history and age-at-onset information in their family members. Genotype data are typically collected from the probands, but not from their relatives. In this article, we introduce an approach that combines case-control analysis of data on the probands with kin-cohort analysis of disease history data on relatives. Assuming a marginally specified multivariate survival model for joint risk of disease among family members, we describe methods for estimating relative risk, cumulative risk, and residual familial aggregation. We also describe a variation of the methodology that can be used for kin-cohort analysis of the family history data from a sample of genotyped cases only. We perform simulation studies to assess performance of the proposed methodologies with correct and misspecified models for familial aggregation. We illustrate the proposed methodologies by estimating the risk of breast cancer from BRCA1/2 mutations using data from the Washington Ashkenazi Study.

Suggestions

Power Analysis of C-TDT for Small Sample Size Genome-Wide Association Studies by the Joint Use of Case-Parent Trios and Pairs
Rajabli, Farid; Inan, Gul; İlk Dağ, Özlem (Hindawi Limited, 2013-01-01)
In family-based genetic association studies, it is possible to encounter missing genotype information for one of the parents. This leads to a study consisting of both case-parent trios and case-parent pairs. One of the approaches to this problem is permutation-based combined transmission disequilibrium test statistic. However, it is still unknown how powerful this test statistic is with small sample sizes. In this paper, a simulation study is carried out to estimate the power and false positive rate of this...
GOPred: GO Molecular Function Prediction by Combined Classifiers
Sarac, Oemer Sinan; Atalay, Mehmet Volkan; Atalay, Rengül (Public Library of Science (PLoS), 2010-08-31)
Functional protein annotation is an important matter for in vivo and in silico biology. Several computational methods have been proposed that make use of a wide range of features such as motifs, domains, homology, structure and physicochemical properties. There is no single method that performs best in all functional classification problems because information obtained using any of these features depends on the function to be assigned to the protein. In this study, we portray a novel approach that combines ...
Learning strategies of students with different cpgnitive styles in a hypermedia environment
Yecan, Esra; Çağıltay, Kürşat; Department of Computer Education and Instructional Technology (2005)
The use of hypermedia for educational purposes gained a great deal of importance for educators. There are many opportunities provided to learners by these environments such as independence from time and place, availability and accessability of the course material, non-linear interaction that provides the learner to regulate his/ her own learning and so on. Although many advantages of hypermedia environment are suggested in the literature, there are also many studies concerning with learning in hypermedia en...
Paraoxonase/arylesterase ratio, PON1 192Q/R polymorphism and PON1 status are associated with increased risk of ischernic stroke
Demirdogen, Birsen Can; Turkanoglu, Aysun; Bek, Semai; Sanisoglu, Yavuz; Demirkaya, Seref; Vural, Okay; Arinc, Emel; Adalı, Orhan (Elsevier BV, 2008-01-01)
Objectives: In recent years, importance of enzyme activity measurements, in addition to genotyping, in epidemiological studies relating paraoxonase 1 (PON1) and vascular disease was emphasized. This is the first report evaluating paraoxonase and arylesterase activities as risk factors for ischemic stroke. In addition, PON1 192Gln(Q)/Arg(R) and 55Leu(L)/Met(M) polymorphisms were also analyzed.
HPO2GO: prediction of human phenotype ontology term associations for proteins using cross ontology annotation co-occurrences
Doğan, Tunca (PeerJ, 2018-8-2)
Analysing the relationships between biomolecules and the genetic diseases is a highly active area of research, where the aim is to identify the genes and their products that cause a particular disease due to functional changes originated from mutations. Biological ontologies are frequently employed in these studies, which provides researchers with extensive opportunities for knowledge discovery through computational data analysis. In this study, a novel approach is proposed for the identification of relatio...
Citation Formats
N. Chatterjee, Z. I. Kalaylıoğlu Akyıldız, J. Shih, and M. Gail, “Case-control and case-only designs with genotype and family history data: Estimating relative risk, residual familial aggregation, and cumulative risk,” BIOMETRICS, pp. 36–48, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/69336.