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Statistical Analysis of Recidivism Data Using Frailty Effect

프레일티를 이용한 재범 자료의 연구

Kim, Yang-Jin
김양진

  • Received : 20100400
  • Accepted : 20100700
  • Published : 2010.08.31

Abstract

Recurrent event data occurs when a subject experience the event of interest several times and has been found in biomedical studies, sociology and engineering. Several diverse approaches have been applied to analyze the recurrent events (Cook and Lawless, 2007). In this study, we analyzed the YTOP(Young Traffic Offenders Program) dataset which consists of 192 drivers with conviction dates by speeding violation and traffic rule violation. We consider a subject-specific effect, frailty, to reflect the individual's driving behavior and extend to time-varying frailty effect. Another feature of this study is about the redefinition of risk set. During the study, subject may be under suspension and this period is regarded as non-risk period. Thus the risk variables are reformatted according to suspension and termination time.

Keywords

Observation gap;recidivism;time-varying frailty;recurrent event data;YTOP

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