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Confidence Intervals for the Median Survival Time under Proportional Censorship

Jeong, Seong-Hwa   (Department of Statistics, Kyungpook National UniversityUU0000096  ); Cho, Kil-Ho   (Department of Statistics, Kyungpook National UniversityUU0000096  );
  • 초록

    In this paper, we demonstrate the more accurate confidence intervals for median survival time under the simple proportional hazard model of Koziol and Green (1976) via the Edgeworth expansion for the distribution of the studentized ACL estimator derived in Jeong (2000). The numerical results show that the intervals, so-called test-based and reflect intervals (Slud et al., 1984), outperform normal approximating method in the small sample sizes and/or heavy censoring.


  • 참고문헌 (16)

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 저자의 다른 논문

  • Cho, Kil-Ho (37)

    1. 1991 "점진적(漸進的) 중단법(中斷法)에서 와이블 모형(模型)에 대한 베이즈 추정(推定)" Journal of statistical theory & methods = 統計理論方法硏究 2 (): 23~39    
    2. 1993 "중도절단(中途切斷)된 데이터를 이용한 와이블회귀모형(回歸模型)의 통계적(統計的) 추론(推論)에 관한 연구(硏究)" Journal of statistical theory & methods = 統計理論方法硏究 4 (): 13~30    
    3. 1994 "비모수적 베이지안 추정량을 이용한 생존함수의 추정" Journal of statistical theory & methods = 統計理論方法硏究 5 (2): 29~44    
    4. 1994 "반응편향성을 내포한 리커트형 척도 자료의 분석방법 - 통계 상담 사례 연구 -" Journal of statistical theory & methods = 統計理論方法硏究 5 (2): 107~116    
    5. 1997 "Empirical Bayes Interval Estimation by a Sample Reuse Method" Journal of statistical theory & methods = 統計理論方法硏究 8 (1): 41~48    
    6. 1997 "Bootstrapped Confidence Bands for Quantile Function under LTRC Model" Journal of statistical theory & methods = 統計理論方法硏究 8 (1): 49~58    
    7. 1999 "Asymptotic Relative Efficiencies of the Nonparametric Relative Risk Estimators for the Two Sample Proportional Hazard Model" Journal of the Korean Data & Information Science Society = 한국데이터정보과학회지 10 (1): 103~110    
    8. 2000 "Testing for A Change Point by Model Selection Tools in Linear Regression Models" 한국통계학회 논문집 = Communications of the Korean Statistical Society 7 (3): 655~665    
    9. 2002 "Bootstrap Tests for the General Two-Sample Problem" Journal of the Korean Data & Information Science Society = 한국데이터정보과학회지 13 (1): 129~137    
    10. 2002 "Bootstrap Confidence Intervals for Regression Coefficients under Censored Data" Journal of the Korean Data & Information Science Society = 한국데이터정보과학회지 13 (2): 355~363    

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