ohio {Fahrmeir} | R Documentation |
Air Pollution and Health
Description
Air Pollution and Health, annual data on children 7 to ten years old in Ohio.
Usage
data(ohio)
Format
A data frame with 32 observations on the following 6 variables.
- a7
Presence (1) or absence (0) of respiratory infection
- a8
Presence (1) or absence (0) of respiratory infection
- a9
Presence (1) or absence (0) of respiratory infection
- a10
Presence (1) or absence (0) of respiratory infection
- mother.smoke
a factor with levels
no
yes
- n
number of children
Details
Within the harvard Study of Air Pollution and Health, 537 children were examined annually from age 7 to 10, on the presence or absence of respiratory infection. So there are four repeated measurements on each child, or "short time series". The only available covariate is mothers smoking status at start of study.
Source
Ludwig Fahrmeir, Gerhard Tutz (1994): Multivariate Statistical Modelling Based on Generalized Linear Models. Springer Series in Statistics. Springer Verlag. New-York Berlin Heidelberg
Examples
str(ohio)
summary(ohio)