Overview nIntroductionTN BiasesDefintionsnProblems with observational studiesVolunteer biasLead time biasLength biasStage migration biasPseudodiseaseScreening tests:TN Biasesn“When your only tool is a hammer,you tend to see every problem as a nail.”nClinical care accounts for 95%of spending but only 20%of determinants of health*nBiggest threats are public health threatsnInterventions aimed at individuals are overemphasized because they are more profitable and we know how to do/sell them*Teutsch
