Univariate analysis of dichotomous or ordinal data from twin pairs: a simulation study comparing structural equation modeling and logistic regression.

abstract：:Smalley et al. [(1992) Genet Epidemiol 9:333-345] found evidence of a mixture of two distributions in memory performance among offspring of patients with dementia of the Alzheimer type (DAT), suggesting that these groups reflect genotypic subgroups of carriers and non-carriers of a putative DAT gene. One prediction of...

journal_title：Genetic epidemiology

authors： Palmer CG,Wolkenstein BH,La Rue A,Swan GE,Smalley SL

更新日期：1994-01-01 00:00:00

abstract：:Recent advances in the molecular basis of body fat regulation have identified several genes in which genetic variation may influence obesity and related measures in human populations. Genes that have been shown to have a regulatory function in the control of body fat utilization, eating behavior, and/or metabolic rate...

journal_title：Genetic epidemiology

authors： Bray MS,Boerwinkle E,Hanis CL

更新日期：1999-01-01 00:00:00

abstract：:Sequencing studies using whole-genome or exome scans are still more expensive than genome-wide association studies on a per-subject basis. As a result, only a subset of subjects from a larger study will be selected for sequencing. To perform an agnostic investigation of the entire genome, subjects may be selected that...

journal_title：Genetic epidemiology

authors： Edwards TL,Li C

更新日期：2012-07-01 00:00:00

abstract：:There has been extensive literature on modeling gene-gene interaction (GGI) and gene-environment interaction (GEI) in case-control studies with limited literature on statistical methods for GGI and GEI in longitudinal cohort studies. We borrow ideas from the classical two-way analysis of variance literature to address...

journal_title：Genetic epidemiology

authors： Ko YA,Saha-Chaudhuri P,Park SK,Vokonas PS,Mukherjee B

更新日期：2013-09-01 00:00:00

abstract：:We compare four strategies for finding the settings of genetic parameters that maximize the lod scores reported in GENEHUNTER 1.2. The four strategies are iterated complete factorial designs, iterated orthogonal Latin hypercubes, evolutionary operation, and numerical optimization. The genetic parameters that are set a...

journal_title：Genetic epidemiology

authors： Chen CH,Finch SJ,Mendell NR,Gordon D

更新日期：1999-01-01 00:00:00

abstract：:Jewish women have been reported to have a higher risk for familial breast cancer than non-Jewish women and to be more likely to carry mutations in breast cancer genes such as BRCA1. Because BRCA1 mutations also increase women's risk for ovarian cancer, we asked whether Jewish women are at higher risk for familial ovar...

journal_title：Genetic epidemiology

authors： Steinberg KK,Pernarelli JM,Marcus M,Khoury MJ,Schildkraut JM,Marchbanks PA

更新日期：1998-01-01 00:00:00

abstract：:We have used the unblinded MG1/Q1 Genetic Analysis Workshop 12 simulated data as a model system for investigating the use of linkage disequilibrium structure and simple genotype-phenotype associations to identify candidate functional mutations within a gene of interest. Analysis of the pattern of pairwise linkage dise...

journal_title：Genetic epidemiology

authors： Huang Q,Morrison AC,Boerwinkle E

更新日期：2001-01-01 00:00:00

abstract：:Imputation is widely used for obtaining information about rare variants. However, one issue concerning imputation is the low accuracy of imputed rare variants as the inaccurate imputed rare variants may distort the results of region-based association tests. Therefore, we developed a pre-collapsing imputation method (P...

journal_title：Genetic epidemiology

authors： Kim YJ,Lee J,Kim BJ,T2D-Genes Consortium.,Park T

更新日期：2017-01-01 00:00:00

abstract：:Standard linear regression is commonly used for genetic association studies of quantitative traits. This approach may not be appropriate if the trait, on its original or transformed scales, does not follow a normal distribution. A rank-based nonparametric approach that does not rely on any distributional assumptions c...

journal_title：Genetic epidemiology

authors： Li Q,Li Z,Zheng G,Gao G,Yu K

更新日期：2013-05-01 00:00:00

abstract：:Orientals consisting of Japanese, Chinese, Koreans, and Filipinos are clearly at higher risk for cleft lip with or without cleft palate [CL(P)] than whites, Puerto Ricans, and Hawaiians/part-Hawaiians in Hawaii. Using the model of diallele cross, CL(P) incidences in incrosses and outcrosses involving 564,002 live birt...

journal_title：Genetic epidemiology

authors： Chung CS,Mi MP,Beechert AM

更新日期：1987-01-01 00:00:00

abstract：:Multipoint linkage analysis using sibpair designs remains a common approach to help investigators to narrow chromosomal regions for traits (either qualitative or quantitative) of interest. Despite its popularity, the success of this approach depends heavily on how issues such as genetic heterogeneity, gene-gene, and g...

journal_title：Genetic epidemiology

authors： Chiou JM,Liang KY,Chiu YF

更新日期：2005-01-01 00:00:00

abstract：:For many clinical studies in cancer, germline DNA is prospectively collected for the purpose of discovering or validating single-nucleotide polymorphisms (SNPs) associated with clinical outcomes. The primary clinical endpoint for many of these studies are time-to-event outcomes such as time of death or disease progres...

journal_title：Genetic epidemiology

authors： Owzar K,Li Z,Cox N,Jung SH

更新日期：2012-09-01 00:00:00

abstract：:An extension of the traditional regression of offspring on midparent (ROMP) method was used to estimate the heritability of the trait, test for marker association, and estimate the heritability attributable to a marker locus. The fifty replicates of the Genetic Analysis Workshop (GAW) 12 simulated general population d...

journal_title：Genetic epidemiology

authors： Pugh EW,Papanicolaou GJ,Justice CM,Roy-Gagnon MH,Sorant AJ,Kingman A,Wilson AF

更新日期：2001-01-01 00:00:00

abstract：:Site-specific familial aggregation and evidence supporting Mendelian codominant inheritance have been shown in lung cancer. In characterizing lung cancer families, a number of other cancers have been observed. The current study evaluates whether first-degree relatives of early onset lung cancer cases are at increased ...

journal_title：Genetic epidemiology

authors： Schwartz AG,Siegfried JM,Weiss L

更新日期：1999-11-01 00:00:00

abstract：:Mapping of the human genome has the potential to transform the traditional methods of genetic epidemiology. The complete draft sequence of the 3.3 billion nucleotides comprising the genome is now available over the Internet, including the location and nearly complete sequence of the 26,000 to 31,000 protein-encoding g...

journal_title：Genetic epidemiology

authors： Sellers TA,Yates JR

更新日期：2003-02-01 00:00:00

abstract：:A computer-simulation method is presented for determining and correcting for the effect of maximizing the lod score over disease definitions, penetrance values, and perhaps other model parameters. The method consists of simulating the complete analysis using marker genotypes randomly generated under the assumption of ...

journal_title：Genetic epidemiology

authors： Weeks DE,Lehner T,Squires-Wheeler E,Kaufmann C,Ott J

更新日期：1990-01-01 00:00:00

abstract：:The linkage between electronic health records (EHRs) and genotype data makes it plausible to study the genetic susceptibility of a wide range of disease phenotypes. Despite that EHR-derived phenotype data are subjected to misclassification, it has been shown useful for discovering susceptible genes, particularly in th...

journal_title：Genetic epidemiology

authors： Wang L,Damrauer SM,Zhang H,Zhang AX,Xiao R,Moore JH,Chen J

更新日期：2017-12-01 00:00:00

abstract：:Genome-wide association studies are proven tools for finding disease genes, but it is often necessary to combine many cohorts into a meta-analysis to detect statistically significant genetic effects. Often the component studies are performed by different investigators on different populations, using different chips wi...

journal_title：Genetic epidemiology

authors： Begum F,Sharker MH,Sherman SL,Tseng GC,Feingold E

更新日期：2016-02-01 00:00:00

abstract：:A genome-wide correlation analysis and cluster analysis were utilized to determine chromosomal regions that had similar nonparametric linkage scores across families in order to locate interacting susceptibility loci for asthma. Conditional analysis was performed to detect any increase in lod score over baseline. Eight...

journal_title：Genetic epidemiology

authors： Colilla S,Tsalenko A,Pluznikov A,Cox NJ

更新日期：2001-01-01 00:00:00

abstract：:Linkage analysis of complex traits has had limited success in identifying trait-influencing loci. Recently, coding variants have been implicated as the basis for some biomedical associations. We tested whether coding variants are the basis for linkage peaks of complex traits in 42 African-American (n = 596) and 90 His...

journal_title：Genetic epidemiology

authors： Hellwege JN,Palmer ND,Raffield LM,Ng MC,Hawkins GA,Long J,Lorenzo C,Norris JM,Ida Chen YD,Speliotes EK,Rotter JI,Langefeld CD,Wagenknecht LE,Bowden DW

更新日期：2014-05-01 00:00:00

abstract：:In the analysis of gene expression data, dimension reduction techniques have been extensively adopted. The most popular one is perhaps the PCA (principal component analysis). To generate more reliable and more interpretable results, the SPCA (sparse PCA) technique has been developed. With the "small sample size, high ...

journal_title：Genetic epidemiology

authors： Liu M,Fan X,Fang K,Zhang Q,Ma S

更新日期：2017-12-01 00:00:00

abstract：:Methods to account for population structure (PS) in genome-wide association studies have been well developed in samples of unrelated individuals, but when a sample is composed of families, the task of finding and accounting for PS is not as straight forward. Family-based tests that condition on parental genotypes or t...

journal_title：Genetic epidemiology

authors： Peloso GM,Dupuis J,Lunetta KL

更新日期：2011-09-01 00:00:00

abstract：:Several approaches were taken to identify the loci contributing to the quantitative and qualitative phenotypes in the Genetic Analysis Workshop 12 simulated data set. To identify possible quantitative trait loci (QTL), the quantitative traits were analyzed using SOLAR. The four replicates identified as the "best repli...

journal_title：Genetic epidemiology

authors： Pankratz N,Kirkwood SC,Flury L,Koller DL,Foroud T

更新日期：2001-01-01 00:00:00

abstract：:Healthy male monozygotic (MZ) and dizygotic (DZ) twin pairs (MZ pairs = 77; DZ pairs = 88) were studied to assess the effect of dietary intake, physical activity, physical fitness, body mass index (BMI), sum of the triceps and subscapular skinfold measurements, alcohol and caffeine consumption, and smoking patterns on...

journal_title：Genetic epidemiology

authors： Slattery ML,Bishop DT,French TK,Hunt SC,Meikle AW,Williams RR

更新日期：1988-01-01 00:00:00

abstract：:alpha 1-antitrypsin (alpha 1 AT) deficiency is variably associated with the development of pulmonary emphysema. To gain insight into the process which begins the Z point mutation at the Protease Inhibitor (Pi) locus and results in the variable development of emphysema, three quantitative phenotypes, including total al...

journal_title：Genetic epidemiology

authors： Silverman EK,Province MA,Campbell EJ,Pierce JA,Rao DC

更新日期：1990-01-01 00:00:00

abstract：:With challenges in data harmonization and environmental heterogeneity across various data sources, meta-analysis of gene-environment interaction studies can often involve subtle statistical issues. In this paper, we study the effect of environmental covariate heterogeneity (within and between cohorts) on two approache...

journal_title：Genetic epidemiology

authors： Li S,Mukherjee B,Taylor JM,Rice KM,Wen X,Rice JD,Stringham HM,Boehnke M

更新日期：2014-07-01 00:00:00

abstract：:Cancer has predominant environmental and somatic causes but the assessment of hereditary (genetic) causes is difficult, except for highly penetrant single-gene causes. Family studies are only partially informative in this regard because family members share diet and life-styles. Twin studies have been classically used...

journal_title：Genetic epidemiology

authors： Hemminki K,Lönnstedt I,Vaittinen P,Lichtenstein P

更新日期：2001-01-01 00:00:00

abstract：:The present findings for familial Alzheimer's disease suggest a possible linkage to gene(s) on chromosome 21 for the early onset form and to chromosome 19 for the late onset. Since these results are not unequivocal, possible alternative hypotheses include the effect of genetic heterogeneity or of an oligogenic model o...

journal_title：Genetic epidemiology

authors： Macciardi F,Cavallini MC

更新日期：1993-01-01 00:00:00

abstract：:The asymptotic distribution of [MOD] scores under the null hypothesis of no linkage is only known for affected sib pairs and other types of affected relative pairs. We have extended the GENEHUNTER-MODSCORE program to allow for simulations under the null hypothesis of no linkage to determine the empirical significance ...

journal_title：Genetic epidemiology

authors： Mattheisen M,Dietter J,Knapp M,Baur MP,Strauch K

更新日期：2008-01-01 00:00:00

abstract：:Increased adiposity has repeatedly been identified as a major risk factor for a variety of chronic diseases. However, the question still remains whether the amount of adipose tissue itself is genetically mediated. To address this question, a segregation analysis, using maximum likelihood techniques as implemented in t...

journal_title：Genetic epidemiology

authors： Comuzzie AG,Blangero J,Mahaney MC,Mitchell BD,Hixson JE,Samollow PB,Stern MP,MacCluer JW

更新日期：1995-01-01 00:00:00