A randomised

controlled study involves a group

of people that has been followed over a period of time and information

concerning risk factors is collected.

A randomised

controlled study involves people divided into 2 groups. The first group is

called the intervention group, which receives the drug, and the second group is

called the control group, which does not receive a drug. Then, the outcomes are

compared.

It

describes the characteristics of people who suffer from the same disease or

exposure.

It describes a risk factor that might be a possible cause of the disease.

It

involves both disease rates and information about exposures to a disease for a

group of people.

It

involves the characteristics of people who suffer from the same disease or

exposure.

It involves 

a

group of people that has been followed over a period of time as well as information

concerning risk factors.

It

involves both disease rates and information about exposures to a disease for a

group of people.

It involves a scientific process of giving an

answer to the question using data from a population.

It

involves selecting a group of people and measuring health information at a given

point in time with the help of a questionnaire.

It involves a

group of people that has been followed over a period of time.

It means

that people with the disease are more likely to have been exposed to that risk

factor than people without the disease. It suggests that the risk factor might

be a possible cause of the disease.

It means

that people without the disease are more likely to have been exposed to that

risk factor than people with the disease. It suggests that the risk factor

might not be a possible cause of the disease.

In a

Cohort Study, a group of people has been followed over a period of time and

information concerning risk factors is collected.

A Cohort

Study involves selecting a

group of people and measuring health information at a given point in time with

the help of a questionnaire.

a

scientific process of giving an answer to the question using data from a

population

a detailed examination of a subject in order to discover new information

an activity of examining a subject in detail in order to discover new information