to select one of the two models for use in predicting the

survival of breast cancer patients who were interviewed.


Table 6

Regression Equations for Breast Cancer:
Dependent Variables


Independent and


 Model


Variables 1 2


Independent
 Stage +
 Subsequent treatment + +

Dependent
 Log survival + +



 Table 7 summarizes the variables tested in three

regression analyses of the rectocolon cancer cases.


Table 7

Regression Equations for Rectocolon Cancer: Independent and
Dependent Variables



 Model

Variable 1 2

Independent
 Sex +
 Stage + +

Dependent
 Log survival + +