i The Principles of Screening The choice of disease for which to Disease screen Test The nature of the screening test or tests to be used R Treatment o The availability of a treatment for those found to have the disease ?s Cost The relative costs of the screening Programm 8 March 2018 5/808 March 2018 5/80 The Principles of Screening  The choice of disease for which to screen;  The nature of the screening test or tests to be used;  The availability of a treatment for those found to have the disease;  The relative costs of the screening