Week 2

Question 1

List the 5 objectives of epidemiology

Answer 1

1. Identify the cause and risk factors of the disease.
2. Determine the extent and patterns of disease in the community (surveillance).
3. Understand the natural history of the disease so intervention can be established and assessed.
4. Evaluate both existing and newly developed preventative and therapeutic measures and methods of health care.
5. To provide the foundations of public health policy.

Question 2

What is a case?

Answer 2

A case is who is suffering from a health outcome.

Question 3

What must precise case definition include?

Answer 3

It must include;
Person
Time
Place
Info on health outcome
Has the disease occurrence changed with time

Question 4

Define the population as risk

Answer 4

A certain portion of the population who is much more exposed to dangers or harm, in comparison to the larger population.

Question 5

What is exposure?

Answer 5

It is what may be causing a health outcome aka risk factor.

Question 6

What is a health outcome?

Answer 6

Something that occur as a result of a exposure / risk factor.

Question 7

What is a cohort?

Answer 7

A group of people that share something in common.

Question 8

Define Association

Answer 8

How likely a health outcome is with or without a exposure.

Question 9

What is a extraneous risk factor?

Answer 9

Other risk factors that need to be taken into account.

Question 10

Define sample

Answer 10

A sample is drawn from a source of population when resources do not allow the entire population to be studied. Results are then generalised to a larger target population.