The Korean Journal of Applied Statistics (응용통계연구)

The Korean Statistical Society (한국통계학회)
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On the analysis of multistate survival data using Cox's regression model

Cox 회귀모형을 이용한 다중상태의 생존자료분석에 관한 연구

  • Sung Chil Yeo (Department of Applied Statistics, Kon-kuk University, Seoul 133-701, Korea)
  • Published : 1994.09.01
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Abstract

In a certain stochastic process, Cox's regression model is used to analyze multistate survival data. From this model, the regression parameter vectors, survival functions, and the probability of being in response function are estimated based on multistate Cox's partial likelihood and nonparametric likelihood methods. The asymptotic properties of these estimators are described informally through the counting process approach. An example is given to likelihood the results in this paper.

병원의 임상연구실험에서 종종 환자들의 치료에 따른 병세의 호전상태를 여러단계로 분류하여 상이한 치료방법에 따른 치료효과간의 차이를 알고자 하는 경우가 있다. 이와 같이 다중상태의 생존자료분석을 위한 한가지 방법으로 본 논문에서는 비동형의 Markov 모형에 Cox 회귀모형을 적용하여 회귀계수와 기저생존함수, 그리고 이를 바탕으로 반응확률함수를 추정하고 아울러 이들 추정량들의 대표본 성질들을 셈과정(Counting process) 기법을 이용하여 알아 보았다. 그리고 본 논문의 결과에 대해 실제 예를 들어 보였다.

Keywords

References

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