Gordis epidemiology

Introduction -- The dynamics of disease transmission -- The occurrence of disease : I. Disease surveillance and measures of morbidity -- The occurrence of disease : II. Mortality and other measures of disease impact -- Assessing the validity and reliability of diagnostic and screening tests -- The natural history of disease : ways of expressing prognosis -- Observational studies -- Cohort studies -- Comparing cohort and case-control studies -- Assessing preventive and therapeutic measures : randomized trials -- Randomized trials : some further issues -- Estimating risk : is there an association? -- More on risk : estimating the potential for prevention -- From association to causation : deriving inferences from epidemiologic studies -- More on causal inference : bias, confounding, and interaction -- Identifying the roles of genetic and environmental factors in disease causation -- Using epidemiology to evaluate health services -- Epidemiologic approach to evaluating screening programs -- Epidemiology and public policy -- Ethical and professional issues in epidemiology -- Answers to review questions."