mecdt: Pre-processed NHANES data.

In httk: High-Throughput Toxicokinetics

Pre-processed NHANES data.

Description

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

Usage

mecdt

Format

A data.table with 23620 rows and 12 variables.

seqn

NHANES unique identifier for individual respondents.

sddsrvyr

NHANES two-year cycle: one of "NHANES 2013-2014", "NHANES 2015-2016", "NHANES 2017-2018".

riagendr

Gender: "Male" or "Female"

ridreth1

Race/ethnicity category: one of "Mexican American", "Non-Hispanic White", "Non-Hispanic Black", "Other", "Other Hispanic".

ridexagm

Age in months at the time of examination (if not recorded by NHANES, it was imputed based on age at the time of screening)

ridexagy

Age in years at the time of examination (if not recorded by NHANES, it was imputed based on age at the time of screening)

bmxwt

Weight in kg

lbxscr

Serum creatinine, mg/dL

lbxhct

Hematocrit, percent by volume of blood composed of red blood cells

wtmec6yr

6-year sample weights for combining 3 cycles, computed by dividing 2-year sample weights by 3.

bmxhtlenavg

Average of height and recumbent length if both were measured; if only one was measured, takes value of the one that was measured.

weight_class

One of Underweight, Normal, Overweight, or Obese. Assigned using methods in get_weight_class.

Author(s)

Caroline Ring

Source

https://wwwn.cdc.gov/nchs/nhanes/Default.aspx

References

Ring, Caroline L., et al. "Identifying populations sensitive to environmental chemicals by simulating toxicokinetic variability." Environment International 106 (2017): 105-118

httk documentation built on March 7, 2023, 7:26 p.m.