Question
What measure of disease is each of the following?
The percentage of freshman girls who become pregnant over the course of their high school year.
The percentage of senior boys who are fathers at the time of graduation.
The number of live born babies who die of sudden infant death syndrome during the first year of life per 100,000 baby-years of follow-up.
The percentage of infants weighing less than 2,500 grams at birth.
The lifetime risk of breast cancer.
