Causality

Question 0

What is a cause factor?

Answer 0

Exposure that increases the probability of developing a disease

Question 1

Why is it important to know the causes of diseases?

Answer 1

The reduce risk factors to provide intervention and improve public health.

Also to reduce attention to non-causal factors to not waste money, effort, time and resources

Question 2

What is a disease?

Answer 2

Causal + preventable factors that can be systematically investigated.

Not random.

Question 3

With knowledge is the cause of a disease what can NHS do?

Answer 3

Remove, avoid or protect against the exposure

Question 4

Talk about the relationship of studies for systematic investigations to determine cause-effect relationships?

Answer 4

Cohort study shows association of exposure to developing disease using IRR

Case-control shows association between case of disease and exposure using OR

Imbetween there are confounders (known, unknown and possible), chance and bias - both information and selection

Question 5

What is the Bradford Hill’s Criteria?

Answer 5

Evaluation of the causality of a disease:
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