TY - JOUR T1 - Estimating the sensitivity of a screening test. JF - Journal of Epidemiology and Community Health JO - J Epidemiol Community Health SP - 364 LP - 366 DO - 10.1136/jech.39.4.364 VL - 39 IS - 4 AU - N E Day Y1 - 1985/12/01 UR - http://jech.bmj.com/content/39/4/364.abstract N2 - 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. ER -