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Cohort Study in Epidemiology

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Questions and Answers

What is the primary characteristic of a cohort?

A group having a common characteristic (correct)
A group with a specific risk factor
A group having a similar outcome
A group with a specific disease

In a cohort study, what is the purpose of dividing the cohort into two groups?

To exclude cases of the disease under investigation
To compare the outcomes of the disease under investigation
To identify the risk factor for the disease
To compare the incidence of disease among exposed and non-exposed groups (correct)

What is the requirement for a cohort in a cohort study?

The cohort should be large and diverse
The cohort should have a specific disease
The cohort should be stable, cooperative, and accessible to the investigator (correct)
The cohort should have a similar outcome

What is the conclusion that can be drawn if the incidence of disease is higher in the exposed group?

The risk factor supports the etiological hypothesis (D) Signup and view all the answers

What is the first step in a cohort study?

Exclude cases of the disease under investigation (A) Signup and view all the answers

What is the primary reason for excluding cases of disease under investigation in a cohort study?

To establish a baseline for comparing the incidence of disease (B) Signup and view all the answers

Which of the following is a necessary condition for a cohort study?

The cohort must be stable, cooperative, and accessible to the investigator (D) Signup and view all the answers

What is the primary advantage of a cohort study over other observational study designs?

It allows for the measurement of incidence rates (C) Signup and view all the answers

What is the primary role of the control group in a cohort study?

To provide a basis for comparison with the exposed group (A) Signup and view all the answers

What is the significance of a higher incidence of disease in the exposed group compared to the non-exposed group?

It supports the etiological hypothesis (B) Signup and view all the answers

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