PH717 - Module 3 - Measuring Frequency and Association
Contents
Page 1
Introduction
Learning Objectives
Page 2
Counting Cases of Disease
Simple Ratios, Proportions, and Rates
Simple Ratios
Proportions
Rates
Measures of Disease Frequency
Page 3
Prevalence
Page 4
Incidence
Cumulative Incidence Versus Incidence Rate
Cumulative Incidence
Incidence Rate
Incidence Density
Which to Use: Cumulative Incidence or Incidence Rate?
Summary of Measures of Disease Frequency
Units for Denominators
Page 5
Relationship Among Prevalence, Incidence Rate, and Average Duration of Disease
Calculating Average Duration of Disease
Page 6
Special Measures of Disease Frequency
Special Measures of Incidence
Special Measures of Prevalence
Page 7
Basic Strategies for Analytical Epidemiology Studies
Page 8
Hypotheses
The Null Hypothesis:
Page 9
Measures of Association Summarize Comparisons of Frequency
Contingency Tables
Page 10
Risk Ratio and Risk Difference
Excess Relative Risk
The "Null" Values
Page 11
Incidence Rate Ratios and Incidence Rate Differences
Page 12
Prevalence Ratio & Prevalence Difference
Page 13
Absolute and Relative Measures Provide Different Perspectives
Page 14
Using R to Generate Contingency Tables from a Data Set
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