1. Causation Abdulaziz Bin Saeed Assistant professor Fam&Com Medicine

2. Causation What is a cause of a disease? It is a factor that influence of a disease. Necessary vs. Sufficient

3. Models of disease causation Epidemiologic Triad The Causal Pie Model

4. Epidemiologic Triad Agent HostEnvironment

5. Epidemiologic Triad AgentHost Environment

6. Causation The appreciation of the concept of causation is based on what? Example

7. The Causal Pie Model EB A CD EB A CD HB A FG JC A FI

8. Causal Criteria Strength Consistency Specificity Temporality Biologic gradient Plausibility Coherence Experimental evidence Consideration of Alternate Explanations