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Preface | p. xi |
About the Authors | p. xv |
Prognostic models for survival data using (clinical) information available at baseline, based on the Cox model | p. 1 |
The special nature of survival data | p. 3 |
Introduction | p. 3 |
Basic statistical concepts | p. 5 |
Predictive use of the survival function | p. 9 |
Additional remarks | p. 13 |
Cox regression model | p. 15 |
The hazard function | p. 15 |
The proportional hazards model | p. 18 |
Fitting the Cox model | p. 21 |
Example: Breast Cancer II | p. 24 |
Extensions of the data structure | p. 26 |
Alternative models | p. 30 |
Additional remarks | p. 33 |
Measuring the predictive value of a Cox model | p. 35 |
Introduction | p. 35 |
Visualizing the relation between predictor and survival | p. 35 |
Measuring the discriminative ability | p. 38 |
Measuring the prediction error | p. 42 |
Dealing with overfitting | p. 49 |
Cross-validated partial likelihood | p. 51 |
Additional remarks | p. 54 |
Calibration and revision of Cox models | p. 57 |
Validation by calibration | p. 57 |
Internal calibration | p. 58 |
External calibration | p. 59 |
Model revision | p. 66 |
Additional remarks | p. 68 |
Prognostic models for survival data using (clinical) information available at baseline, when the proportional hazards assumption of the Cox model is violated | p. 71 |
Mechanisms explaining violation of the Cox model | p. 73 |
The Cox model is just a model | p. 73 |
Heterogeneity | p. 74 |
Measurement error in covariates | p. 79 |
Cause specific hazards and competing risks | p. 81 |
Additional remarks | p. 84 |
Non-proportional hazards models | p. 85 |
Cox model with time-varying coefficients | p. 85 |
Models inspired by the frailty concept | p. 91 |
Enforcing parsimony through reduced rank models | p. 94 |
Additional remarks | p. 98 |
Dealing with non-proportional hazards | p. 101 |
Robustness of the Cox model | p. 101 |
Obtaining dynamic predictions by landmarking | p. 105 |
Additional remarks | p. 116 |
Dynamic prognostic models for survival data usingtime-dependent information | p. 119 |
Dynamic predictions using biomarkers | p. 121 |
Prediction in a dynamic setting | p. 121 |
Landmark prediction model | p. 124 |
Application | p. 126 |
Additional remarks | p. 132 |
Dynamic prediction in multi-state models | p. 135 |
Multi-state models in clinical applications | p. 135 |
Dynamic prediction in multi-state models | p. 139 |
Application | p. 142 |
Additional remarks | p. 151 |
Dynamic prediction in chronic disease | p. 153 |
General description | p. 153 |
Exploration of the EORTC breast cancer data set | p. 154 |
Dynamic prediction models for breast cancer | p. 161 |
Dynamic assessment of "cure" | p. 164 |
Additional remarks | p. 168 |
Dynamic prognostic models for survival data using genomic data | p. 169 |
Penalized Cox models | p. 171 |
Introduction | p. 171 |
Ridge and las,so | p. 172 |
Application to Data Set 3 | p. 174 |
Adding clinical predictors | p. 179 |
Additional remarks | p. 181 |
Dynamic prediction based on genomic data | p. 185 |
Testing the proportional hazards assumption | p. 185 |
Landmark predictions | p. 186 |
Additional remarks | p. 191 |
Appendices | p. 193 |
Data sets | p. 195 |
Data Set 1: Advanced ovarian cancer | p. 195 |
Data Set 2: Chronic Myeloid Leukemia (CML) | p. 196 |
Data Set 3: Breast Cancer I (NKI) | p. 199 |
Data Set 4: Gastric Cancer | p. 200 |
Data Set 5: Breast Cancer II (EORTC) | p. 203 |
Data Set 6: Acute Lymphatic Leukemia (ALL) | p. 205 |
Software and website | p. 211 |
R packages used | p. 212 |
The dynpred package | p. 213 |
Additional remarks | p. 215 |
References | p. 217 |
Index | p. 233 |
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