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Survival analysis using the SAS system : a practical guide / Paul D. Allison.

LIBRA QA276.4 .A394 1995
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Format:
Book
Author/Creator:
Allison, Paul David.
Contributor:
SAS Institute.
Language:
English
Subjects (All):
SAS (Computer file).
Failure time data analysis--Data processing.
Failure time data analysis.
Survival analysis (Biometry)--Data processing.
Survival analysis (Biometry).
Physical Description:
viii, 292 pages : illustrations ; 28 cm
Place of Publication:
Cary, NC : SAS Institute, [1995]
Summary:
Analyzing survival data with the SAS System? Easy to read and comprehensive, this guide is ideal for biomedical and social science researchers. Written for the person with a modest statistical background and minimal knowledge of SAS software, this book teaches many aspects of data input and manipulation. Numerous examples of SAS code and output make this an eminently practical book, ensuring that even the uninitiated become sophisticated users of survival analysis.
Contents:
What is Survival Data? 2
Why Use Survival Analysis? 4
Approaches to Survival Analysis 5
Computing Notes 7
Chapter 2 Basic Concepts of Survival Analysis 9
Censoring 9
Describing Survival Distributions 14
Interpretations of the Hazard Function 17
Some Simple Hazard Models 19
The Origin of Time 22
Data Structure 25
Chapter 3 Estimating and Comparing Survival Curves with PROC LIFETEST 29
The Kaplan-Meir Method 30
Testing for Differences in Survivor Functions 36
The Life-Table Method 41
Life Tables from Grouped Data 49
Testing for the Effects of Covariates 52
Log Survival and Smoothed Hazard Plots 56
Chapter 4 Estimating Parametric Regression Models with PROC LIFEREG 61
The Accelerated Failure Time Model 62
Alternative Distributions 66
Categorical Variables and the CLASS Statement 78
Maximum Likelihood Estimation 79
Hypothesis Tests 85
Goodness-of-Fit Tests with the Likelihood-Ratio Statistic 88
Graphical Methods for Evaluating Model Fit 91
Left Censoring and Interval Censoring 97
Generating Predictions and Hazard Functions 101
The Piecewise Exponential Model 104
Chapter 5 Estimating Cox Regression Models with PROC PHREG 111
The Proportional Hazards Model 113
Partial Likelihood 114
Tied Data 127
Time-Dependent Covariates 138
Cox Models with Nonproportional Hazards 154
Interactions with Time as Time-Dependent Covariates 155
Nonproportionality via Stratification 158
Left Truncation and Late Entry into the Risk Set 161
Estimating Survivor Functions 165
Residuals and Influence Statistics 173
Testing Linear Hypotheses with the TEST Statement 181
Chapter 6 Competing Risks 185
Type-Specific Hazards 186
Time in Power for Leaders of Countries: Example 189
Estimates and Tests without Covariates 190
Covariate Effects via Cox Models 195
Accelerated Failure Time Models 200
An Alternative Approach to Multiple Event Types 206
Chapter 7 Analysis of Tied or Discrete Data with the LOGISTIC, PROBIT, and GENMOD Procedures 211
The Logit Model for Discrete Time 212
The Complementary Log-Log Model for Continuous-Time Processes 216
Data with Time-Dependent Covariates 219
Issues and Extensions 223
Chapter 8 Heterogeneity, Repeated Events, and Other Topics 233
Unobserved Heterogeneity 233
Repeated Events 236
Generalized R[superscript 2] 247
Sensitivity Analysis for Informative Censoring 249
Chapter 9 A Guide for the Perplexed 253
How to Choose a Method 253
Appendix 1 Macro Programs 259
The SMOOTH Macro 259
The LIFEHAZ Macro 261
The PREDICT Macro 263
The WLW Macro 264
Appendix 2 Data Sets 269
The MYEL Data Set: Myelomatosis Patients 269
The RECID Data Set: Arrest Times for Released Prisoners 270
The STAN Data Set: Stanford Heart Transplant Patients 271
The BREAST Data Set: Survival Data for Breast Cancer Patients 272
The JOBDUR Data Set: Durations of Jobs 272
The ALCO Data Set: Survival of Cirrhosis Patients 272
The LEADERS Data Set: Time in Power for Leaders of Countries 273
The RANK Data Set: Promotions in Rank for Biochemists 274
The JOBMULT Data Set: Repeated Job Changes 275.
Notes:
Includes index.
Includes bibliographical references: pages 277-281.
ISBN:
155544279X
9781555442798
OCLC:
1170611070

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