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ExposureAssessment
Exposure Assessment from continuous data in the absence of a gold standard test
A software package for estimating exposure probabilities in a series of subjects where one or more continuous test measurements relating to the exposure of interest are available for each subject
This package is an implementation of the methods presented in
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BayesDiagnosticTests
Estimation of Disease Prevalence and the Parameters of One, Two or Three Diagnostic Tests
A package to calculate Bayesian posterior distributions via Gibbs sampling for the prevalence of a disease, and sensitivity, specificity, positive and negative predictive values for each test used for that disease, in the absence of a gold standard; requires that the free software packages Winbugs and Perl be installed.
Replaces tt1, tt2 and tt3.
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BayesContinuousDiagnosticTest
Estimation of Disease Prevalence and the Parameters of a Continuous Diagnotic Test and One or Two Dichotomous Diagnostic Test(s)
A software package to calculate marginal Bayesian posterior distributions via Gibbs sampling when data are available from a continuous diagnostic test and one or two dichotomous diagnostic test(s) in the absence of a gold standard; requires that the free software packages R, Winbugs and Perl be installed.
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BayesLatentClassModels
A program for estimating diagnostic test properties and disease prevalence in the presence of possibly correlated tests
A software package for estimating diagnostic test properties and disease prevalence in the presence of possibly correlated tests in the absence of a gold standard; requires that the free software packages R and Perl be installed.
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PredictiveValues
Computation of Predictive Values when using One, Two or Three Diagnostic Tests
A program designed to convert information on a disease prevalence and one, two or three diagnosic tests into information on predictive values (i.e., on the probability for a patient of being truly positive given a series of diagnostic tests results)
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Sample size determination for inference on prevalence or diagnostic test sensitivity or specificity
A package to calculate sample sizes based on highest posterior density intervals in the context of diagnostic testing in presence of one or two imperfect tests; requires that the free software packages R, Winbugs and Perl be installed.
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