Analytic Epidemiology
Determining the
Etiology of Disease
Study Development Process
Analyze results and
retest
Model Building and
hypothesis
formulation
Analytic Studies for
Hypothesis testing
Descriptive Studies:
Data Collection and
Analysis
Causal Association
Strength of association
Dose-Response Relationship
Consistency of the Association
Temporally Correct Association
Specificity of the Association
Coherence with Existing Information
Sources of Data
Primary data
– information collected
directly by the researcher
Secondary data
– data that has
already been collected and stored
for analysis
Types of Surveys
Administrative surveys, medical
records, vital records and statistical
data
Telephone surveys
Self-administered surveys
Personal interviews
Sensitivity
Sensitivity (Se)
– measures how
accurately the test identifies those with
the condition or trait, i.e., correctly
identifies or captures true positives
High sensitivity is needed:
When early treatment is important
When identification of every case is
important