Ohio {MLGdata}

Ohio Children Wheeze Status

Description

The dataset is a subset of the six-city study, a longitudinal study of the health effects of air pollution.

Usage

Ohio

Format

Data frame with 2148 observations on the following 4 variables

resp

an indicator of wheeze status (1=yes, 0=no)

id

a numeric vector for subject id

age

a numeric vector of age, 0 is 9 years old

smoke

an indicator of maternal smoking at the first year of the study

Source

Package geepack

References

Fitzmaurice, G.M. and Laird, N.M. (1993) A likelihood-based method for analyzing longitudinal binary responses, Biometrika 80: 141–151.

Halekoh, U., Højsgaard, S. e Yan, J. (2005). The R package geepack for generalized estimating equations. Journal of Statistical Software, 15, 1-11.