Observationaln Study Designs DLA

Question 1

What is a prospective study

Answer 1

Looks forward into the future, examines future events, follows a condition, concern or disease into the future

Question 2

What is a retrospective study?

Answer 2

Looks back in time to study events that have already occurred

Question 3

What is another term for a cohort study?

Answer 3

Longitudinal study

Question 4

Describe a cohort study

Answer 4

• A cohort study typically examines multiple health effects of an exposure
• study begins with disease free individuals, subjects are defined according to exposure levels and followed over time for outcome occurrence
• outcomes are compared and relative risks are compared

Question 5

In cohort studies, data usually collected__________

Answer 5

Prospectively