This popular book is written by the award-winning teacher, Dr. Leon Gordis of the Bloomberg School of Public Health at Johns Hopkins University. He introduces the basic principles and concepts of epidemiology in clear, concise writing and his inimitable style. This book provides an understanding of the key concepts in the following 3 fully updated sections: Section I: The Epidemiologic Approach to Disease and Intervention; Section II: Using Epidemiology to Identify the Causes of Disease; Section III: Applying Epidemiology to Evaluation and Policy. Clear, practical graphs and charts, cartoons, and review questions with answers reinforce the text and aid in comprehension.
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The Dynamics of Disease Transmission
Assessing the Validity and Reliability of Diagnostic and Screening Tests
Ways of Expressing Prognosis
Estimating the Potential for Prevention
Bias Confounding and Interaction
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association attack rate attributable risk beneﬁt bias blood pressure breast cancer calculate case-control study case-fatality rate causal causes chapter clinical trials cohort study compared controls coronary death rates deﬁned detection develop diagnosis difﬁcult discussed drug effect environmental epidemiology evaluating example expected exposed exposure ﬁgure ﬁnd ﬁndings ﬁrst follow-up genetic heart disease Helicobacter pylori herd immunity hospital hypothetical identiﬁed incidence rate increased individuals infection interval intervention issues lung cancer measure mortality rate natural history negative number of deaths observed occurred odds ratio outbreak outcome pancreatic cancer period person-years persons physicians placebo population positive positive predictive value possible predictive value pregnancy prevalence prevention problem proportion public health question randomized trial reﬂect relationship relative risk reported rheumatic fever risk factors sample screening seen in Figure selected sensitivity shows signiﬁcant smoking speciﬁc study design Table test results therapy thyroid cancer tion treatment tuberculosis United women