REGRESSION

Regression

Regression

Regression analysis is used for both analysis of prediction and association. However, the selection of factors included in the model differs based on the type of analysis performed. While most statistics books focus on measures of prediction, epidemiologic studies are primarily concerned with questions of association. Because measuring associations is the most common use of regression analysis in epidemiology, this methodology is the focus of this entry. Analysis for questions of prediction will primarily be discussed to provide a contrast on how analysis differs from that for estimating measures of association.

An example of the first use of predictive analysis is the ...