PT  - JOURNAL ARTICLE
AU  - N E Day
TI  - Estimating the sensitivity of a screening test.
AID  - 10.1136/jech.39.4.364
DP  - 1985 Dec 01
TA  - Journal of Epidemiology and Community Health
PG  - 364--366
VI  - 39
IP  - 4
4099  - http://jech.bmj.com/content/39/4/364.short
4100  - http://jech.bmj.com/content/39/4/364.full
SO  - J Epidemiol Community Health1985 Dec 01; 39
AB  - A commonly used estimate of a screening test's sensitivity, based on the prevalence at screening and the incidence of interval cancers, is shown to be logically unsound and quantitatively poor. An alternative simple estimate is proposed, based only on incidence rates.