Ch 23: Case study on survival analysis
Interaction
Interaction
Section 23.5 described model specification. Detailed results of the assessment of interactions are provided here: sex differences with a sumscore of atherosclerotic symptoms, and differential effects of age by diabetes.
Fig 23.extra1 Interaction between sex and the sumscore for previous symptoms of atherosclerosis, and between age and diabetes in the SMART study.
Effects of predictors
Effects of predictors
The graph below graphically depicts the effects of some predictors.
Fig 23.extra2 Effects of predictors in the stepwise selected model in the SMART study. HISTCAR2: sumscore of previous symptoms of atherosclerosis, with 2 points for AAA and 1 point for other symptoms (cerebral, coronary, peripheral).