fdgs.R

#'Fifth Dutch growth study 2009
#'
#'Age, height, weight and region of 10030 children measured within the Fifth
#'Dutch Growth Study 2009
#'
#'The data set contains data from children of Dutch descent (biological parents
#'are born in the Netherlands). Children with growth-related diseases were
#'excluded. The data were used to construct new growth charts of children of
#'Dutch descent (Schonbeck 2013), and to calculate overweight and obesity
#'prevalence (Schonbeck 2011).
#'
#'Some groups were underrepresented.  Multiple imputation was used to create
#'synthetic cases that were used to correct for the nonresponse. See Van Buuren
#'(2012), chapter 8 for details.
#'
#'@name fdgs
#'@aliases fdgs
#'@docType data
#'@format \code{fdgs} is a data frame with 10030 rows and 8 columns: 
#'\describe{
#'\item{id}{Person number} 
#'\item{reg}{Region (factor, 5 levels)} 
#'\item{age}{Age (years)} 
#'\item{sex}{Sex (boy, girl)}
#'\item{hgt}{Height (cm)} 
#'\item{wgt}{Weight (kg)}
#'\item{hgt.z}{Height Z-score} 
#'\item{wgt.z}{Weight Z-score} 
#'}
#'@source Schonbeck, Y., Talma, H., van Dommelen, P., Bakker, B., Buitendijk,
#'S. E., Hirasing, R. A., van Buuren, S. (2011).  Increase in prevalence of
#'overweight in Dutch children and adolescents: A comparison of nationwide
#'growth studies in 1980, 1997 and 2009.  \emph{PLoS ONE}, \emph{6}(11),
#'e27608.
#'
#'Schonbeck, Y., Talma, H., van Dommelen, P., Bakker, B., Buitendijk, S. E., 
#'Hirasing, R. A., \& van Buuren, S. (2013). The world's tallest nation has 
#'stopped growing taller: the height of Dutch children from 1955 to 2009. 
#'\emph{Pediatric Research}, \emph{73}(3), 371-377.
#'
#'Van Buuren, S. (2018). 
#'\href{https://stefvanbuuren.name/fimd/sec-nonresponse.html#fifth-dutch-growth-study}{\emph{Flexible Imputation of Missing Data. Second Edition.}}
#'Boca Raton, FL.: Chapman & Hall/CRC Press.
#'@keywords datasets
#'@examples
#'
#'
#'data <- data(fdgs)
#'summary(data)
#'
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