Example 55.3: Regression with Quantitative and Qualitative Variables At times it is desirable to have independent variables in the model that are qualitative rather than quantitative. This is easily ...

Proper handling of continuous variables is crucial in healthcare research, for example, within regression modelling for descriptive, explanatory, or predictive purposes. However, inadequate methods ...

Cox-type regression analysis for large numbers of small groups of correlated failure time observations. In Survival Analysis: State of the Art, Ed. J. P. Klein and P. Goel, pp. 237-48. Boston: Kluwer ...

The number of variables in a regression model is often too large and a more parsimonious model may be ... A bootstrap resampling procedure for model building: application to the Cox regression model.

Cox regression was used to study the excess risk of outcomes (death, acute myocardial infarction, stroke, and hospitalization for heart failure) associated with smoking and the number of variables ...