Exam 3 Review 2011

Exam 3 Review 2011 - 4/4/2011 FormatoftheExam 50 multiple...

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4/4/2011 1 Exam 3 Review HUN4445 Format of the Exam • 50 multiple choice questions • Exam questions are taken from class notes and lectures/powerpoints Guidelines and Procedures • Non-programmable calculators only • Be sure to fill in the bubble for exam A or B • When finished hand in both bubble sheet When finished hand in both bubble sheet and the exam and show ID Topics on Exam 3 • Nutrition Research • Cancer • Cancer therapy Nutrition Research Identify types of study designs Advantages and disadvantages of study designs. Given a brief description of the study design, be able to identify the type of study Internal and external validity Confidence in results, ie cause and effect Bias Confounding Cancer and Cancer Therapy Focus on the food and nutrition aspects! Know the prevention and risks of nutrition and cancer Know different treatments Know the side effects Know the organ specific effects on nutrition Don’t need to know drug names
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4/4/2011 2 Analytical Study Designs Observational designs • Ecological studies • Case-control studies • Cohort studies • Experimental designs • Randomized Controlled studies Ecological Studies Use existing data gathered on populations to examine associations between diseases and other factors • Data are not usually gathered for this purpose Confounding factors cannot be controlled • No control over the quality of the data • The weakest study design for cause and effect Case-Control Studies • Compares characteristics of individuals with a disease to those without, matching the cases and controls as closely as possible on cases and controls as closely as possible on variables such as age, sex, socioeconomic status Retrospective study • Results are obtained quickly • Useful with rare diseases Concerns with Case-Control Studies Comparability of cases and controls • Selection bias in choosing controls Alternative explanations of causality • Alternative explanations of causality • Does the causal factor precede disease or did it result from it
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This note was uploaded on 12/09/2011 for the course HUN 4445 taught by Professor Sitren during the Spring '08 term at University of Florida.

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Exam 3 Review 2011 - 4/4/2011 FormatoftheExam 50 multiple...

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