PH717 Module 1B - Descriptive Tools
Descriptive Epidemiology & Descriptive Statistics
Contents
Page 1
Introduction
Learning Objectives
Page 2
Public Health Surveillance
Data Sources for Public Health Surveillance and Monitoring the US Population
Page 3
Characteristics of Person, Place, and Time
Person: Personal Characteristics and Behaviors
Place: Variation by Location
Variation in Disease Over Time
Other Factors That Can Produce Changes in Disease Frequency Over Years or Decades
Page 4
Case Reports and Case Series
Case Reports
Case Series
Test Yourself
Page 5
Cross-Sectional Surveys
Key points to remember about cross-sectional surveys:
Test Yourself
Page 6
Ecological Studies (Correlational Studies)
Test Yourself
Page 7
Population Parameters versus Sample Statistics
Variables in Public Health
Variable Types
Summarizing Dichotomous, Ordinal, and Categorical Variables
Summarizing Continuous Variables
Central Tendency Values for Normally Distributed versus Skewed Distributions of Continuous Variables
Normal Distributions
Variability in a Normal Distribution
Skewed Distributions or Those with Extreme Outliers
Variability in a Skewed Distribution or with Outliers
Test Yourself
Page 8
Graphical Displays
Page 9
Quantitative and Qualitative Methods for Public Health
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