The response vector consists of quarterly numbers of hospital visits over a one year period for a child age at four or younger, and three baseline covariates are age, sex, and maternal smoking status. The sample size of this study is \(n=73\) children.
data(childvisit)
A data frame with 292 observations on the following 6 variables.
id
The child ID.
age
The age in months.
sex
The sex indicator.
matsmst
The maternal smoking status.
quarter
The time indicator.
hospvis
The response vector of quarterly numbers of hospital visits.