Fundamentals

Epidemiology

Epidemiology

Principal Uses

Epidemiology

Metrics example

Epidemiology

Epidemiology

Measures of Frequency

Comparing data

Age Distribution

Figure

Choosing

Figure

Descriptive Epidemiology

Descriptive Epidemiology

The cross sectional study

The cross sectional study

Analytical Studies

Analytical Studies

Two by Two Table

Cohort studies

Common to

Cohort Study

Relative risk

Case control Study

Figure

Case Control studies

Odds Ratio

2X2 Table

Odds Ratio

Source of Cases

Sources of Controls

Sources of Controls

Analytical Studies

Figure

Therapeutic Study

How do you plan

PICO considerations

Prevention

Exposure

Prevention

cART

HPTN

HPTN

HPTN

Outcome

Prevention Trials

Exposure Knowledge

Measuring

Measuring

RCTs

2nd example

Community

Study Size

Factors

Bias and Precision

Bias

Multivariable Analysis

Multivariable Analysis

Ethical Issues

Interpretation

Causal criteria

Example

Implementation

Qualitative research

Level of Evidence

Questions