R/boys.r

In CRUF: Clinical Research Utilities Functions

#'Growth of Dutch boys
#'
#'Height, weight, head circumference and puberty of 748 Dutch boys.
#'
#'Random sample of 10\% from the cross-sectional data used to construct the
#'Dutch growth references 1997. Variables \code{gen} and \code{phb} are ordered
#'factors. \code{reg} is a factor.
#'
#'@name boys
#'@docType data
#'@format A data frame with 748 rows on the following 9 variables: \describe{
#'\item{age}{Decimal age (0-21 years)}
#'\item{hgt}{Height (cm)}
#'\item{wgt}{Weight (kg)}
#'\item{bmi}{Body mass index}
#'\item{hc}{Head circumference (cm)}
#'\item{gen}{Genital Tanner stage (G1-G5)}
#'\item{phb}{Pubic hair (Tanner P1-P6)}
#'\item{tv}{Testicular volume (ml)}
#'\item{reg}{Region (north, east, west, south, city)} }
#'@source Fredriks, A.M,, van Buuren, S., Burgmeijer, R.J., Meulmeester JF,
#'Beuker, R.J., Brugman, E., Roede, M.J., Verloove-Vanhorick, S.P., Wit, J.M.
#'(2000) Continuing positive secular growth change in The Netherlands
#'1955-1997.  \emph{Pediatric Research}, \bold{47}, 316-323.
#'
#'Fredriks, A.M., van Buuren, S., Wit, J.M., Verloove-Vanhorick, S.P. (2000).
#'Body index measurements in 1996-7 compared with 1980.  \emph{Archives of
#'Disease in Childhood}, \bold{82}, 107-112.
#'@keywords datasets

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