Estimating prevalence from the results of a screening test.
Autor: | Rogan, W J, Gladen, B |
---|---|
Zdroj: | American Journal of Epidemiology; January 1978, Vol. 107 Issue: 1 p71-76, 6p |
Abstrakt: | This paper deals with some basis properties of screening tests. Such tests purport to separate people with disease from people without. Minimal criteria for such a process to be a test are discussed. Various ways of judging the goodness of a test are examined. A common use of tests is to estimate prevalence of disease; frequency of positive tests is shown to be a bad estimate, and the necessary adjustmants are given. |
Databáze: | Supplemental Index |
Externí odkaz: |
načítá se...