Causation Abdulaziz Bin Saeed Assistant professor Fam&Com Medicine.

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Presentation transcript:

Causation Abdulaziz Bin Saeed Assistant professor Fam&Com Medicine

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

Models of disease causation Epidemiologic Triad The Causal Pie Model

Epidemiologic Triad Agent HostEnvironment

Epidemiologic Triad AgentHost Environment

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

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

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

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