Amount of previously unrecognized disease which is diagnosed by screening effort, is -

Yield of the screening test: Is the amount of previously unrecognized disease that is diagnosed as a result of screening effort. Yield of the screening test depends on: Sensitivity of screening test. Specificity of screening test. Prevalence of the disease in population. Participation of individuals in the detection programme. Yield of a screening test increases by: selecting high risk population for screening.