growthIndiana {HRW}

Adolescent somatic growth in Indiana, U.S.A.

Description

Data on adolescent somatic growth obtained from a study of the mechanisms of human hypertension development conducted at the Indiana University School of Medicine, Indianapolis, Indiana, U.S.A. The data are restricted to a subset of 216 adolescents in the original study who had at least 9 height measurements. There are a total of 4,123 height measurements taken approximately every 6 months.

Usage

data(growthIndiana)

Format

A data frame with 4,123 observations on the following 5 variables:

idnum

identification numbers of the 216 adolescents.

height

height in centimeters.

age

age in years.

male

indicator of the adolescent being male:
1 = adolescent is male,
0 = adolescent is female.

black

indicator of the adolescent being black:
1 = adolescent is black,
0 = adolescent is not black.

References

Pratt, J.H., Jones, J.J., Miller, J.Z., Wagner, M.A. and Fineberg, N.S. (1989). Racial differences in aldosterone excretion and plasma aldosterone concentrations in children. New England Journal of Medicine, 321, 1152-1157.

Examples

library(HRW) ; data(growthIndiana)
growthINblackMales <- growthIndiana[(growthIndiana$male == 1) & (growthIndiana$black == 1),]
if (require("lattice"))
   xyplot(height ~ age|factor(idnum),data = growthINblackMales)