MIDAS: Stata module to provide Meta-analytical Integration of Diagnostic Accuracy Studies in Stata

Ben Adarkwa Dwamena ()

Statistical Software Components from Boston College Department of Economics

Abstract: midas is a comprehensive program of statistical and graphical routines for undertaking meta-analysis of diagnostic test performance in Stata. Primary data synthesis is performed within the bivariate generalized linear mixed modeling framework. Model specification, estimation and prediction are carried out with gllamm (Rabe-Hesketh et.al, spherical adaptive quadrature). Using the estimated coefficients and variance-covariance matrices, midas calculates the summary operating sensitivity and specificity (with confidence and prediction ellipses) in SROC space. Summary likelihood and odds ratios with relevant heterogeneity statistics are provided. midas facilitates extensive statistical and graphical data synthesis and exploratory analyses of unobserved heterogeneity, covariate effects, publication bias and subgroup analyses. Bayes' nomograms, likelihood ratio matrices and conditional probability plots may be obtained and used to guide clinical decision-making. metan and mylabels packages from SSC should be installed for use of midas.

Requires: Stata version 10 (9 for midas9)
Date: 2007-10-14
Note: This module may be installed from within Stata by typing "ssc install midas". Windows users should not attempt to download these files with a web browser.

Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/m/midas.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/m/midas.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/m/midas9.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/m/midas9.hlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/m/midas_examples.ado sample job (text/plain)
http://fmwww.bc.edu/repec/bocode/m/midas_example_data.dta sample data file (application/x-stata)
http://fmwww.bc.edu/repec/bocode/m/midas9_examples.ado sample job (version 9.x) (text/plain)
http://fmwww.bc.edu/repec/bocode/m/midas9_example_data.dta sample data file (application/x-stata)

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