
pmid: 20101670
AbstractFor bivariate meta‐analysis of diagnostic studies, likelihood approaches are very popular. However, they often run into numerical problems with possible non‐convergence. In addition, the construction of confidence intervals is controversial. Bayesian methods based on Markov chain Monte Carlo (MCMC) sampling could be used, but are often difficult to implement, and require long running times and diagnostic convergence checks. Recently, a new Bayesian deterministic inference approach for latent Gaussian models using integrated nested Laplace approximations (INLA) has been proposed. With this approach MCMC sampling becomes redundant as the posterior marginal distributions are directly and accurately approximated. By means of a real data set we investigate the influence of the prior information provided and compare the results obtained by INLA, MCMC, and the maximum likelihood procedure SAS PROC NLMIXED. Using a simulation study we further extend the comparison of INLA and SAS PROC NLMIXED by assessing their performance in terms of bias, mean‐squared error, coverage probability, and convergence rate. The results indicate that INLA is more stable and gives generally better coverage probabilities for the pooled estimates and less biased estimates of variance parameters. The user‐friendliness of INLA is demonstrated by documented R‐code. Copyright © 2010 John Wiley & Sons, Ltd.
Likelihood Functions, Models, Statistical, Diagnostic Tests, Routine, 610 Medicine & health, Bayes Theorem, 10060 Epidemiology, Biostatistics and Prevention Institute (EBPI), Biostatistics, Sensitivity and Specificity, Markov Chains, Bias, Meta-Analysis as Topic, Urinary Bladder Neoplasms, Biomarkers, Tumor, Confidence Intervals, Linear Models, Humans, 10029 Clinic and Policlinic for Internal Medicine, 2613 Statistics and Probability, Monte Carlo Method, Telomerase, 2713 Epidemiology
Likelihood Functions, Models, Statistical, Diagnostic Tests, Routine, 610 Medicine & health, Bayes Theorem, 10060 Epidemiology, Biostatistics and Prevention Institute (EBPI), Biostatistics, Sensitivity and Specificity, Markov Chains, Bias, Meta-Analysis as Topic, Urinary Bladder Neoplasms, Biomarkers, Tumor, Confidence Intervals, Linear Models, Humans, 10029 Clinic and Policlinic for Internal Medicine, 2613 Statistics and Probability, Monte Carlo Method, Telomerase, 2713 Epidemiology
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