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Description

Manipulating and Analysing EQ-5d Data.

The EQ-5D is a widely-used standarized instrument for measuring Health Related Quality Of Life (HRQOL), developed by the EuroQol group <https://euroqol.org/>. It assesses five dimensions; mobility, self-care, usual activities, pain/discomfort, and anxiety/depression, using either a three-level (EQ-5D-3L) or five-level (EQ-5D-5L) scale. Scores from these dimensions are commonly converted into a single utility index using country-specific value sets, which are critical in clinical and economic evaluations of healthcare and in population health surveys. The eq5dsuite package enables users to calculate utility index values for the EQ-5D instruments, including crosswalk utilities using the original crosswalk developed by van Hout et al. (2012) <doi:10.1016/j.jval.2012.02.008> (mapping EQ-5D-5L responses to EQ-5D-3L index values), or the recently developed reverse crosswalk by van Hout et al. (2021) <doi:10.1016/j.jval.2021.03.009> (mapping EQ-5D-3L responses to EQ-5D-5L index values). Users are allowed to add and/or remove user-defined value sets. Additionally, the package provides tools to analyze EQ-5D data according to the recommended guidelines outlined in "Methods for Analyzing and Reporting EQ-5D data" by Devlin et al. (2020) <doi:10.1007/978-3-030-47622-9>.

eq5dsuite

The goal of this package is to provide a suite of functions for manipulating and analysing EQ-5D data.

The file structure in the R folder is as follows:

  • init.R: description of the processes taking place every time the package is loaded, e.g. pre-calculation of the crosswalk matrices; based on the analogous file from the eqxwr package.

  • utils.R; EQ_functions.R; eqxwr.R - files based on the files with the same name as those from the eqxwr package but expanded to accept 3L data

  • eqxw.R - file containing forward crosswalk functions; adapted from eqxwr.R

  • eq5d_devlin.R - file containing code for Tables and Figures from the Devlin book (one file per Table or Figure)

  • eq5d_aux.R - secondary files, e.g. wrappers, used in eq5d_devlin.R

In addition,

  • data/example_data.rda is an example dataset that can be used to test eq5d_devlin.R functions

Installation

You can install the development version of eq5dsuite from GitHub with:

# install.packages("devtools")
devtools::install_github("MathsInHealth/eq5dsuite")
Metadata

Version

1.0.0

License

Unknown

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