BCEA

BCEA is a R library specifically designed to post-process the result of a Bayesian health economic evaluation. Typically, this consists in the estimation of a set of relevant parameters that can be combined to produce an estimation of suitable measures of cost (\(c\)) and clinical benefits (\(e\)) associated with an intervention. Within the Bayesian framework, this amounts to estimating a posterior distribution for the pair \((e,c)\).

Introduction The intention of this vignette is to show how to plot different styles of cost-effectiveness acceptability curves using the BCEA package. Two interventions only This is the simplest case, usually an alternative intervention (\(i=1\)) versus status-quo (\(i=0\)). The plot show the probability that the alternative intervention is cost-effective for each willingness to pay, \(k\), \[ p(NB_1 \geq NB_0 | k) \mbox{ where } NB_i = ke - c \]

There are several arguments passed to bcea() to specify the form of the analysis. These are bcea(e, c, ref = 1, interventions = NULL, .comparison = NULL, Kmax = 50000, wtp = NULL, plot = FALSE) Those of interest here are: ref is the reference intervention group to compare against the other groups. .comparisons are the groups to compare against ref.

Check out our book on the BCEA R package published by Springer in the UseR! series. This book is co-authored by myself, Andrea Berardi and Anna Heath. Table of contents Preface Get a promotional code - save 20% when ordering online from Springer website BCEA - an R package to run Bayesian health economic evaluations (used throughout the book and specifically in the examples) Journal editors, journalists or bloggers can request a free Online Review Copy of the book.

BCEAweb is a front-end that can be used to access many of the functionalities of the R package BCEA. It can be accessed here. Files The landing page of the web-app has a very short tutorial proving a very brief guide and pointing to files that can be downloaded to test its functions. These are Vaccine_spreadsheet.csv: a spreadsheet with simulated values for all the model parameters for the “Vaccine” fictional example, discussed in the BCEA Book.