figure_1_4_1

This function calculates and plots the Health State Density Curve (HSDC) for a given
EQ-5D dataset. It concatenates dimension values to form health state profiles, filters
out invalid states based on the specified EQ-5D version, then computes the cumulative
distribution of profiles (profiles vs. observations). A diagonal reference line
indicates a perfectly even distribution. The function also calculates the Health State
Density Index (HSDI), representing how sharply the observed distribution deviates from
the diagonal.

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>.

Kim Rand

eq5dsuite

Handling and Analysing EQ-5d Data

Iryna Schlackow

Anabel Estévez-Carrillo

figure_1_4_1 function

<dl><dt>df</dt>
<dd>Data frame with the EQ-5D columns</dd>
<dt>names_eq5d</dt>
<dd>Character vector of column names for the EQ-5D dimensions</dd>
<dt>eq5d_version</dt>
<dd>Version of the EQ-5D instrument</dd></dl>

Arguments

Figure 1.4.1: Generate a Health State Density Curve (HSDC) for EQ-5D Data — figure_1_4_1

<dl>

<dt>df</dt>
<dd>Data frame with the EQ-5D columns</dd>


<dt>names_eq5d</dt>
<dd>Character vector of column names for the EQ-5D dimensions</dd>


<dt>eq5d_version</dt>
<dd>Version of the EQ-5D instrument</dd>

</dl>

figure_1_4_1: Figure 1.4.1: Generate a Health State Density Curve (HSDC) for EQ-5D Data

Description

Usage

Value

Arguments

Examples