Karnataka PGET 2007 PSM MCQ Answer 15
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Prospective study: A study in which the subjects are identified and then followed forward in time.
Case control studies are studies in which patients who already have a certain condition are compared with people who do not.
For example: a study on which lung cancer patients are asked how much they smoked in the past and the answers are compared with a sample of the general population would be a case control study.
A cross-sectional study is a study in which disease and exposure status are measured simultaneously in a given population. Cross-sectional studies can be thought of as providing a "snapshot" of the frequency and characteristics of a disease in a population at a particular point in time.
Tags: MCQ, PSM, Epidemiological Studies
Category: Karnataka PGET 2007 MCQs
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