Monthly number of stillbirths in Australia from 1998 to 2000. It is a rare
event; there are 352 stillbirths out of 60,110 births. To preserve
confidentiality the day of birth has been randomly re-ordered.
Usage
stillbirth
Arguments
Format
A data frame with 60,110 observations on the following 7 variables.
dob
date of birth (year-month-day)
year
year of birth
month
month of birth
yrmon
a combination of year and month:
\(year+(month-1)/12\)
seifa
SEIFA score, an area level
measure of socioeconomic status in quintiles