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  1. ...The Relative Power of Family-Based and Case-Control Designs for Linkage Disequilibrium Studies of Complex Human Diseases I. DNA Pooling Neil Risch 1 , 2 , 3 , 4 and Jun Teng 3 Departments of 1Genetics and 2Health Research and Policy, Stanford...
  2. ...disequilibrium (LD) (de Bakker et al. 2006a). Powerful analytical tools have also utilized the comprehensive information from these databases to increase genomic coverage and fine-map association signals through statistical imputation of untyped genetic variants that exist in the databases (Marchini et al. 2007...
  3. ...to measure the effect of intrinsic information, specifically linkage disequilibrium patterns in the HapMap, we assume that each polymorphism is equally likely to be causal and observe on average an increase in power that is equivalent to an increase in the number of individuals by 9%. In simulations of whole...
  4. ...fine mapping, and haplotype inference should be carried out jointly with LD mapping; (2) for complex diseases, inferring haplotype phases for individuals prior to LD mapping helps achieve a better accuracy. An improved version of the linkage disequilibrium mapping program, BLADE v2, is available...
  5. ...– 104 . ↵ Teng J. , Risch N. ( 1999 ) The relative power of family-based and case-control designs for linkage disequilibrium studies of complex human diseases. II. Individual genotyping. Genome Res. 9 : 234 – 241 . ↵ Terwilliger J.D. ( 1995 ) A powerful likelihood method for the analysis of linkage...
  6. ...between SNPs and case and control individuals. It will be important to find the most powerful statistic for such studies. Genotyping errors have deleterious effects on association and linkage disequilibrium analysis ( Akey et al. 2001 ) and thus will also affect our set-association method. If, in addition...
  7. .... Hum. Genet. 64 : 1147 – 1157 . ↵ Ott J. ( 2000 ) Predicting the range of linkage disequilibrium. Proc. Natl. Acad. Sci. 97 : 2 – 3 . ↵ Ott J. , Rabinowitz D. ( 1997 ) The effect of marker heterozygosity on the power to detect linkage disequilibrium. Genetics 147 : 927 – 930 . ↵ Pritchard J...
  8. ...are a powerful alternative for locating genes of small effect in complex traits ( Owen and McGuffin 1993 ; Risch and Merikangas 1996 ). Genome-wide association studies using either case-control or family-based methods are much more sensitive than standard -wide affected-sib-pair linkage analyses ( Risch...
  9. ...power to detect one- and two-locus effects on risk for CVD, the intent of this analysis was to demonstrate how the CVD35 assay could be used to evaluate disease association and genotype interactions with a case-control study design. Given the exploratory nature of these preliminary analyses, no formal...
  10. ...influence the detection power of subsequent analysis. (1) Reading the input of allele frequencies in SH's control, SH's case, NH's control, and NH's case, the program randomly generates the genotypes of each individual in a single simulation. (2) Based on the given correlated sampling structure of SH, NH...
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