What This Document Is
This document is a key for Homework Assignment 3 for Fundamentals of Epidemiology (AS280.350) at Johns Hopkins University, Spring 2018. It provides the answers to selected problems, intended for student self-assessment *before* submitting work online via Blackboard. It focuses on applying epidemiological concepts to calculate measures of association like odds ratios, relative risk, and attributable risk.
Why This Document Matters
This annotated key is essential for students enrolled in the course who are completing Homework Assignment 3. It allows students to check their understanding of core epidemiological calculations and interpretations *before* formal submission, promoting self-directed learning and identifying areas needing further review. It’s most valuable when used as a study aid *after* attempting the homework independently.
Common Limitations or Challenges
This document *only* provides answers and brief explanations. It does not offer detailed step-by-step instruction on *how* to arrive at those answers, nor does it cover all possible epidemiological scenarios. Students still need a strong grasp of the course material and the ability to apply concepts to new problems. It is not a substitute for attending lectures, reading the textbook, or seeking clarification from the instructor.
What This Document Provides
The full document includes:
* Answers to four multiple-choice questions related to odds ratios and relative risk calculations based on case-control and cohort study data.
* Worked solutions demonstrating the calculations for each question.
* Problems involving myocardial infarction and stroke incidence.
* Calculations of attributable risk.
This preview does *not* include the full problem statements, the complete reasoning behind each answer, or questions 5 and 6. It only provides a glimpse of the types of calculations and concepts covered in the assignment.