nhdat {csurvey} | R Documentation |
Subset of NHANES 2009 to 2010 Data for Constrained Survey Analysis
Description
A structured subset of the 2009 to 2010 NHANES data designed for illustrating constrained survey estimation methods.
Usage
data(nhdat)
Format
A data frame with 1,680 observations on the following 7 variables:
id
Cluster identifier derived from NHANES sequence number (
SEQN
).chol
Binary indicator of high total cholesterol: 1 if total cholesterol > 200 mg/dL, 0 otherwise. Derived from
LBXTC
inTCHOL_F.XPT
.wcat
Four-level ordinal variable for waist to height ratio category, based on
BMXWAIST
andBMXHT
fromBMX_F.XPT
.gender
Gender of the participant (1 = male, 2 = female), from
RIAGENDR
inDEMO_F.XPT
.age
Age in years (continuous), from
RIDAGEYR
inDEMO_F.XPT
.wt
Sampling weight within strata, based on
WTINT2YR
fromDEMO_G.XPT
.str
Stratum identifier, based on
SDMVPSU
fromDEMO_G.XPT
.
Details
This subset includes participants aged 21 to 45 years, selected for illustrating the estimation of the probability of high cholesterol using order constrained survey methods.
Source
National Center for Health Statistics. NHANES 2009 to 2010 Public Use Data Files.\ https://wwwn.cdc.gov/nchs/nhanes/continuousnhanes/default.aspx?BeginYear=2009