qalys

An object of class <code>qalys</code> returned from methods
<code>$sim_qalys()</code> in model classes that store simulated
quality-adjusted life-years (QALYs).

A modular and computationally efficient R package for
parameterizing, simulating, and analyzing health economic simulation
models. The package supports cohort discrete time state transition models
(Briggs et al. 1998) <doi:10.2165/00019053-199813040-00003>,
N-state partitioned survival models (Glasziou et al. 1990)
<doi:10.1002/sim.4780091106>, and individual-level continuous
time state transition models (Siebert et al. 2012) <doi:10.1016/j.jval.2012.06.014>,
encompassing both Markov (time-homogeneous and time-inhomogeneous) and
semi-Markov processes. Decision uncertainty from a cost-effectiveness analysis is
quantified with standard graphical and tabular summaries of a probabilistic
sensitivity analysis (Claxton et al. 2005, Barton et al. 2008) <doi:10.1002/hec.985>,
<doi:10.1111/j.1524-4733.2008.00358.x>. Use of C++ and data.table
make individual-patient simulation, probabilistic sensitivity analysis,
and incorporation of patient heterogeneity fast.

Devin Incerti

hesim

Health Economic Simulation Modeling and Decision Analysis

Jeroen P. Jansen

Mark Clements

R Core Team 

qalys function

A <code>qalys</code> object inherits from <code>data.table</code> and contains
the following columns:
<dl>
<dt>sample</dt>
<dd>A random sample from the PSA.</dd><dt>strategy_id</dt>
<dd>The treatment strategy ID.</dd><dt>patient_id</dt>
<dd>The patient ID.</dd><dt>grp_id</dt>
<dd>The subgroup ID.</dd><dt>state_id</dt>
<dd>The health state ID.</dd><dt>dr</dt>
<dd>The rate used to discount QALYs.</dd><dt>category</dt>
<dd>A single category always equal to "qalys".</dd><dt>qalys</dt>
<dd>The simulated values of QALYs.</dd>
</dl>If the argument <code>lys = TRUE</code>, then the <code>data.table</code> also contains a column
<code>lys</code> containing simulated life-years.

Components

Quality-adjusted life-years object — qalys

A <code>qalys</code> object inherits from <code>data.table</code> and contains
the following columns:
<dl>
<dt>sample</dt>
<dd>A random sample from the PSA.</dd>

<dt>strategy_id</dt>
<dd>The treatment strategy ID.</dd>

<dt>patient_id</dt>
<dd>The patient ID.</dd>

<dt>grp_id</dt>
<dd>The subgroup ID.</dd>

<dt>state_id</dt>
<dd>The health state ID.</dd>

<dt>dr</dt>
<dd>The rate used to discount QALYs.</dd>

<dt>category</dt>
<dd>A single category always equal to "qalys".</dd>

<dt>qalys</dt>
<dd>The simulated values of QALYs.</dd>


</dl>If the argument <code>lys = TRUE</code>, then the <code>data.table</code> also contains a column
<code>lys</code> containing simulated life-years.

qalys: Quality-adjusted life-years object

Description

Arguments

Components