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eq5d

CRAN status Downloads R-CMD-check Codecov test coverage License: MIT

eq5d provides tools for the valuation, reporting and analysis of EQ-5D health outcomes.

The package supports utility index calculation, descriptive system reporting, severity and distributional summaries, longitudinal change analysis and visualisation of EQ-5D profiles. A companion Shiny application is also included for interactive analysis of EQ-5D datasets.

EQ-5D is a health-related quality-of-life instrument developed by the EuroQol Group. Health is described using five dimensions: Mobility (MO), Self-care (SC), Usual Activities (UA), Pain/Discomfort (PD) and Anxiety/Depression (AD). eq5d supports valuation and analysis of EQ-5D-3L, EQ-5D-Y-3L and EQ-5D-5L data.

Installation

Install the latest release from CRAN:

install.packages("eq5d")

Install the development version from GitHub:

# install.packages("remotes")
remotes::install_github("fragla/eq5d")

Getting started

The examples below illustrate some of the main functionality provided by eq5d.

Utility index calculation

library(eq5d)
#> Loading required package: lifecycle
#> Loading required package: rlang

scores <- c(MO = 1, SC = 2, UA = 3, PD = 2, AD = 1)

eq5d(scores, country = "UK", version = "3L", type = "TTO")
#> [1] 0.329

# Five-digit health state
eq5d(12321, country = "UK", version = "3L", type = "TTO")
#> [1] 0.329

Finding value sets

valuesets(
  country = "France",
  references = c("PubMed", "DOI")
)
#>    Version Type Country   PubMed                        DOI           Notes
#> 1 EQ-5D-3L  DSU  France       NA                       <NA>            <NA>
#> 2 EQ-5D-3L  TTO  France 21935715  10.1007/s10198-011-0351-x            <NA>
#> 3 EQ-5D-5L   CW  France 22867780 10.1016/j.jval.2012.02.008            <NA>
#> 4 EQ-5D-5L  DSU  France       NA                       <NA>            <NA>
#> 5 EQ-5D-5L   VT  France 31912325 10.1007/s40273-019-00876-4            <NA>
#> 6 EQ-5D-3L  RCW  France 34452708 10.1016/j.jval.2021.03.009 van Hout (2021)

Descriptive-system reporting

dat <- read.csv(
  system.file("extdata", "eq5d3l_example.csv", package = "eq5d")
)

dd <- descriptive_data(
  dat,
  version = "3L",
  metric = "percent"
)

table_descriptive(dd)
#>   Level    MO  SC    UA  PD    AD
#> 1     1  52.5  60  39.5  17  65.5
#> 2     2  47.5  40  55.5  72  31.0
#> 3     3   0.0   0   5.0  11   3.5
#> 4 Total 100.0 100 100.0 100 100.0

Severity summaries

lss(scores, version = "3L")
#> [1] 9

lfs(scores, version = "3L")
#> [1] "221"

Change analysis

pre  <- subset(dat, Group == "Group1")
post <- subset(dat, Group == "Group2")

pchc(pre, post, version = "3L", summary = TRUE)
#>                     Number Percent
#> No change               14      14
#> Improve                 59      59
#> Worsen                  14      14
#> Mixed change            13      13
#> Total with problems    100     100
#> No problems              0       0

Value sets

eq5d includes a wide range of EQ-5D-3L, EQ-5D-5L, EQ-5D-Y-3L, crosswalk, reverse-crosswalk and DSU mapping value sets.

See ?valuesets for details.

Documentation

Further documentation is available in the package vignettes:

Core reporting vignettes

Specialised vignettes

Shiny application

Launch the companion Shiny application with:

shiny_eq5d()

Online version:

https://fragla.shinyapps.io/shiny-eq5d

Contributing

Bug reports, feature requests and pull requests are welcome.

Please use the GitHub issue tracker:

https://github.com/fragla/eq5d/issues

Citation

To obtain citation information for eq5d:

citation("eq5d")

License

MIT License.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.