nhanes_mec_svy

NHANES data on demographics, anthropometrics, and some laboratory measures,
cleaned and combined into a single data set.

data

httk-pop

Generic models and chemical-specific data for simulation and
statistical analysis of chemical toxicokinetics ("TK") as
described by Pearce et al. (2017) <doi:10.18637/jss.v079.i04>.
Chemical-specific in vitro data have been obtained from relatively
high-throughput experiments. Both physiologically-based ("PBTK")
and empirical (for example, one compartment) "TK" models can be
parameterized with the data provided for thousands of chemicals,
multiple exposure routes, and various species. The models consist
of systems of ordinary differential equations which are solved
using compiled (C-based) code for speed. A Monte Carlo sampler is
included, which allows for simulating human biological variability
(Ring et al., 2017 <doi:10.1016/j.envint.2017.06.004>)
and propagating parameter uncertainty. Calibrated methods are
included for predicting tissue:plasma partition coefficients and
volume of distribution
(Pearce et al., 2017 <doi:10.1007/s10928-017-9548-7>).
These functions and data provide a set of tools for
in vitro-in vivo extrapolation ("IVIVE") of high-throughput
screening data (for example, Tox21, ToxCast) to real-world
exposures via reverse dosimetry (also known as "RTK")
(Wetmore et al., 2015 <doi:10.1093/toxsci/kfv171>).

John Wambaugh

httk

High-Throughput Toxicokinetics

Sarah Davidson

Robert Pearce

Caroline Ring

Greg Honda

Mark Sfeir

Matt Linakis

Dustin Kapraun

Miyuki Breen

Shannon Bell

Xiaoqing Chang

Todor Antonijevic

Jimena Davis

James Sluka

Nisha Sipes

Barbara Wetmore

Woodrow Setzer

nhanes_mec_svy function

A survey.design2 object, including masked cluster and strata.
 Variables are available as a data.table by <code>nhanes_mec_svy$variables</code>.
 Variables are as described in NHANES Demographics and Examination
 documentation, with the exception of:<dl>
 <dt><code>wtmec6yr</code></dt>
<dd>6-year sample weights for combining 3 cycles,
 computed by dividing 2-year sample weights by 3.</dd> <dt><code>bmxhtlenavg</code></dt>
<dd>Average of height and recumbent length if both
 were measured; if only one was measured, takes value of the one that was
 measured.</dd>
 <dt><code>logbmxwt</code></dt>
<dd>Natural log of measured body weight.</dd> <dt><code>logbmxhtlenavg</code></dt>
<dd>Natural log of <code>bmxhtlenavg</code>.</dd> <dt><code>weight_class</code></dt>
<dd>One of Underweight, Normal, Overweight, or Obese.
 Assigned using methods in <code>get_weight_class</code>.</dd>
 
</dl>

Format

Author

Pre-processed NHANES data. — nhanes_mec_svy

A survey.design2 object, including masked cluster and strata.
 Variables are available as a data.table by <code>nhanes_mec_svy$variables</code>.
 Variables are as described in NHANES Demographics and Examination
 documentation, with the exception of:<dl>
 <dt><code>wtmec6yr</code></dt>
<dd>6-year sample weights for combining 3 cycles,
 computed by dividing 2-year sample weights by 3.</dd>

 <dt><code>bmxhtlenavg</code></dt>
<dd>Average of height and recumbent length if both
 were measured; if only one was measured, takes value of the one that was
 measured.</dd>
 <dt><code>logbmxwt</code></dt>
<dd>Natural log of measured body weight.</dd>

 <dt><code>logbmxhtlenavg</code></dt>
<dd>Natural log of <code>bmxhtlenavg</code>.</dd>

 <dt><code>weight_class</code></dt>
<dd>One of Underweight, Normal, Overweight, or Obese.
 Assigned using methods in <code>get_weight_class</code>.</dd>
 
</dl>

Pre-processed NHANES data.

nhanes_mec_svy: Pre-processed NHANES data.

Description

Usage

Arguments

Format

Author

References