EQ-5D is a popular health related quality of life instrument used 
    in the clinical and economic evaluation of health care. Developed by the 
    EuroQol group <https://euroqol.org/>, the instrument consists of two 
    components: health state description and evaluation. For the description 
    component a subject self-rates their health in terms of five dimensions; 
    mobility, self-care, usual activities, pain/discomfort, and 
    anxiety/depression using either a three-level (EQ-5D-3L,
    <https://euroqol.org/information-and-support/euroqol-instruments/eq-5d-3l/>) or a five-level
    (EQ-5D-5L, <https://euroqol.org/information-and-support/euroqol-instruments/eq-5d-5l/>) 
    scale. Frequently the scores on these five dimensions are converted to a 
    single utility index using country specific value sets, which can be used
    in the clinical and economic evaluation of health care as well as in 
    population health surveys. The eq5d package provides methods to calculate 
    index scores from a subject's dimension scores. 31 TTO and 11 VAS EQ-5D-3L
    value sets including those for countries in Szende et al (2007) 
    <doi:10.1007/1-4020-5511-0> and Szende et al (2014) 
    <doi:10.1007/978-94-007-7596-1>, 43 EQ-5D-5L EQ-VT value sets, the 
    EQ-5D-5L crosswalk value sets developed by van Hout et al. (2012) 
    <doi:10.1016/j.jval.2012.02.008>, the crosswalk value sets for Bermuda and 
    Russia and the reverse crosswalk value sets. 10 EQ-5D-Y value sets are also 
    included as are the NICE 'DSU' age-sex based EQ-5D-3L to EQ-5D-5L and 
    EQ-5D-5L to EQ-5D-3L mappings. Methods are also included for the analysis 
    of EQ-5D profiles, including those from the book "Methods for Analyzing and 
    Reporting EQ-5D data" by Devlin et al. (2020) 
    <doi:10.1007/978-3-030-47622-9>. Additionally a shiny web tool is included 
    to enable the calculation, visualisation and automated statistical analysis 
    of EQ-5D data via a web browser using EQ-5D dimension scores stored in CSV 
    or Excel files.