from a relatively obscure field in public health and preventive medicine to one that has gained increased prominence in all the health sciences, including health education, health administration, environmental health, allied health, and nursing. This comprehensive, user friendly, and academically sound textbook covers the basic principles and methods of epidemiology in such a way that will appeal to a broad range of undergraduate and graduate students in the health professions. Beyond its clear, concise writing, Essential Epidemiology offers unique pedagogic aids, such as an algorithm to help students identify epidemiologic study designs, a discussion of problems students typically encounter in calculating and interpreting incidence rates, and annotated step by step solutions to numerical problems. In addition, the text introduces topics sometimes ignored in other texts, such as hybrid studies, the controversy surrounding the use of hypothesis testing versus confidence intervals, and the differences between rate and risk measurements. Helpful features contained in each chapter include: 1) highlighted learning objectives and a brief overview; 2) study questions and practical exercises; 3) bulleted summary to stress key points; 4) list of key terms, all boldfaced within text; 5) useful tables and figures to clarify important material; 6) boxed exhibits with engaging supplementary information; 7) sample problems with step by step solutions to illustrate essential calculations; and 8) easily remembered mathematical symbols to aid memorization of formulas. Not-for-sale instructor resource material available to college and university faculty only; contact publisher directly.Also by William A. Oleckno and available from Waveland Press: Epidemiology: Concepts and Methods (ISBN 9781577665229).

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