Treatment by Condition Related to pravastatin. Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, expect as may be authorized by the applicable terms of use. CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals.
The operational definition of a variable is the specific way in which it is measured in that study. Another study might measure the same conceptual measure differently. If you were studying ways of helping people stop smoking, smoking cessation would be an outcome measure (dependent variable).
Let's examine OR: In probability, an outcome is in event A or B when the outcome is in either (or both) event A or event B. In Venn Diagrams, we learned that an element was in the union A or B, when the element was in either or both sets.