ohio: Ohio Children Wheeze Status

ohioR Documentation

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

data(ohio)

Format

The ohio data frame has 2148 rows and 4 columns

  • respan indicator of wheeze status (1=yes, 0=no).

  • ida numeric vector for subject id.

  • agea numeric vector of age, 0 is 9 years old

  • smokean indicator of maternal smoking at the first year of the study

References

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

Examples

data(ohio)


julianfaraway/brinla documentation built on April 6, 2023, 2:33 p.m.