Zobrazeno 1 - 10
of 19
pro vyhledávání: '"J. L. Gastwirth"'
Publikováno v:
Annals of Human Genetics. 69:296-314
Publikováno v:
Annals of Human Genetics. 66:145-155
Autor:
J. L. Gastwirth
Publikováno v:
Wiley StatsRef: Statistics Reference Online.
Publikováno v:
Annals of human genetics. 69(Pt 3)
Both population based and family based case control studies are used to test whether particular genotypes are associated with disease. While population based studies have more power, cryptic population stratification can produce false-positive result
Publikováno v:
Annals of human genetics. 66(Pt 2)
In studies of association between genetic markers and a disease, the transmission disequilibrium test (TDT) has become a standard procedure. It was introduced originally as a test for linkage in the presence of association and can be used as a test f
Autor:
B. Freidlin, J. L. Gastwirth
Publikováno v:
Annals of human genetics. 64(Pt 5)
For diseases that do not follow a clear Mendelian pattern of inheritance nonparametric tests applied to affected sibs have been shown to be robust to the inherent uncertainty about the precise underlying genetic model. It is known that the weights op
Autor:
Z, Li, J L, Gastwirth
Publikováno v:
Genetic epidemiology. 20(1)
Statistical procedures using extremely discordant and concordant sib-pairs have been developed for mapping quantitative trait loci in humans. To improve the power of the existing methods, test statistics placing greater weight on the more discordant
Publikováno v:
International journal of cancer. 88(6)
Human herpesvirus 8 (HHV-8) is thought to be highly prevalent in Mediterranean countries and sub-Saharan Africa, where it causes Kaposi's sarcoma in a small proportion of infected immunocompetent persons. However, the lack of serological tests with e
Publikováno v:
Statistics in medicine. 15(19)
Ordered categorical data occur frequently in biomedical research. The linear by linear association test for ordered R x C tables permits the investigator to specify row and column scores for analysis. When an investigator believes that there may be m
Autor:
M J, Podgor, J L, Gastwirth
Publikováno v:
Biometrics. 50(4)
When rank tests are used to analyze stratified data, three methods for assigning scores to the observations have been proposed: (S) independently within each stratum (see Lehmann, 1975, Nonparametrics: Statistical Methods Based on Ranks; San Francisc