RT Book, Section
A1 Greenberg, Raymond S.
A1 Daniels, Stephen R.
A1 Flanders, W. Dana
A1 Eley, John William
A1 Boring, John R.
SR Print(0)
ID 546542
T1 Appendix C: The Odds Ratio as an Estimator of the Incidence Rate Ratio
T2 Medical Epidemiology, 4e
YR 2005
FD 2005
PB The McGraw-Hill Companies
PP New York, NY
SN 9780071416375
LK accesspharmacy.mhmedical.com/content.aspx?aid=546542
RD 2021/11/27
AB To understand further the design of a case–control study, and why the odds ratio from a case–control study estimates the incidence rate ratio, consider first the occurrence of a particular disease within an underlying population that gives rise to the cases. This underlying cohort is sometimes called the source population. At the start of follow-up, all subjects are disease-free; P people are exposed and Q are not. After following the cohort for t years, A of the P exposed and B of the Q unexposed subjects develop disease (Table C–1).