Epidemiology Leon Gordis, MD, MPH, DrPH, Professor Emeritus of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Professor Emeritus of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland.

Includes bibliographical references and index.

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 -- Assessing preventive and therapeutic measures : randomized trials -- Randomized trials : some further issues -- Cohort studies -- Case-control studies and other study designs -- Estimating risk : is there an association? -- More on risk : estimating the potential for prevention -- A pause for review : comparing cohort and case-control studies -- From association to causation : deriving inferences from epidemiologic studies -- More on causal inferences : bias, confounding, and interaction -- Identifying the roles of genetic and environmental factors in disease causation -- Using epidemiology to evaluate health services -- The epidemiologic approach to evaluating screening programs -- Epidemiology and public policy -- Ethical and professional issues in epidemiology.