Logistic analysis of epidemiologic studies with augmentation sampling involving re-stratification and population expansion
نویسندگان
چکیده
منابع مشابه
Re: Population stratification in epidemiologic studies of common genetic variants and cancer: quantification of bias.
BACKGROUND Some critics argue that bias from population stratification (the mixture of individuals from heterogeneous genetic backgrounds) undermines the credibility of epidemiologic studies designed to estimate the association between a genotype and the risk of disease. We investigated the degree of bias likely from population stratification in U.S. studies of cancer among non-Hispanic Caucasi...
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Methods for the analysis of unmatched case-control data based on a finite population sampling model are developed. Under this model, and the prospective logistic model for disease probabilities, a likelihood for case-control data that accommodates very general sampling of controls is derived. This likelihood has the form of a weighted conditional logistic likelihood. The flexibility of the meth...
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Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, Ohio; Trinity College Dublin, Dublin, Ireland; Department of Anthropology, Pennsylvania State University, University Park, Pennsylvania; and Center for Clinical Epidemiology and Biostatistics, Department of Biostatistics and Epidemiology, and Abramson Cancer Center, University of Pennsylvania School...
متن کاملAncestry estimation and correction for population stratification in molecular epidemiologic association studies.
Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, Ohio; Trinity College Dublin, Dublin, Ireland; Department of Anthropology, Pennsylvania State University, University Park, Pennsylvania; and Center for Clinical Epidemiology and Biostatistics, Department of Biostatistics and Epidemiology, and Abramson Cancer Center, University of Pennsylvania School...
متن کاملpostnatal studies of bats (pipistrellus kuhlii and miniopterus schreibersii) & histomorphology and histochemistry studies of organs and diseases of (neurergus microspilotus and n. kaiseri)
1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...
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ژورنال
عنوان ژورنال: Biostatistics
سال: 2014
ISSN: 1465-4644,1468-4357
DOI: 10.1093/biostatistics/kxu024