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Keywords
(13)
Accelerated Life Testing
Asymptotic Theory
birthdeath process
Censored Data
Conditional Inference
Contingency Table
Failure Rate
Hazard Function
Life Table
Medical Application
Random Variable
Regression Model
Statistical Techniques
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Regression Models and LifeTables
Regression Models and LifeTables,D. R. Cox
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Regression Models and LifeTables
(
Citations: 8672
)
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D. R. Cox
The analysis of censored failure times is considered. It is assumed that on each individual are available values of one or more explanatory variables. The
hazard function
(agespecific failure rate) is taken to be a function of the explanatory variables and unknown regression coefficients multiplied by an arbitrary and unknown function of time. A conditional likelihood is obtained, leading to inferences about the unknown regression coefficients. Some generalizations are outlined. LIFEtables are one of the oldest
statistical techniques
and are extensively used by medical statisticians and by actuaries. Yet relatively little has been written about their more formal statistical theory. Kaplan and Meier (1958) gave a comprehensive review of earlier work and many new results. Chiang in a series of papers has, in particular, explored the connection with birthdeath processes; see, for example, Chiang (1968). The present paper is largely concerned with the extension of the results of Kaplan and Meier to the comparison of life tables and more generally to the incorporation of regressionlike arguments into lifetable analysis. The arguments are asymptotic but are relevant to situations where the sampling fluctuations are large enough to be of practical importance. In other words, the applications are more likely to be in industrial reliability studies and in medical statistics than in actuarial science. The procedures proposed are, especially for the twosample problem, closely related to procedures for combining contingency tables; see Mantel and Haenzel (1959), Mantel (1963) and, especially for the application to life tables, Mantel (1966). There is also a strong connection with a paper read recently to the Society by R. and J. Peto (1972). We consider a population of individuals; for each individual we observe either the time to "failure" or the time to ccloss" or censoring. That is, for the censored individuals we know only that the time to failure is greater than the censoring time. Denote by T a
random variable
representing failure time; it may be discrete or continuous. Let F(t) be the survivor function, %(t) = pr (T2 t)
Published in 1972.
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Citation Context
(2486)
...To model the duration of financial crises, this study uses the Cox (
1972
) proportional hazard framework...
Roland Craigwell
,
et al.
Fiscal policy and the duration of financial crises
...Given this, the appropriate statistical model is the Cox (
1972
) proportional hazard model where log
λ
_{0}
(
t
) is a baseline hazard function,
β
and
γ
are vectors of parameters to be estimated,
x
_{1}
is a vector of time independent explanatory variables, and
x
_{2}
(
t
)
is a vector of time dependent explanatory variables...
Roger Svensson
.
Publiclyfunded R&D programs and survival of patents
...(
2008
) also provides an overview on loadsharing systems and the relationship between the load and the failure behavior of a component, especially using accelerated testing models including the proportional hazards model (Cox,
1972
), accelerated failure time model (Pike,
1966
), tampered failure rate model (Bhattacharyya and Soejoeti,
1989
), cumulative exposure model (Nelson,
1980
), etc...
Chanseok Park
.
Parameter Estimation from LoadSharing System Data Using the Expectati...
...Standardized hazard ratios for breast cancer recurrence for each RNA, that is, the proportional change in the hazard with a 1standard deviation increase in the normalized expression of the RNA, were calculated using univariate Cox proportional hazard regression analyses
...
Dominick Sinicropi
,
et al.
Whole Transcriptome RNASeq Analysis of Breast Cancer Recurrence Risk ...
... For multivariate analyses, CoxPH models were constructed, and parameter estimates and
P
values are shown
...
A Rosenmayr
,
et al.
What are a patient's current chances of finding a matched unrelated do...
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Citations: 489
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James V. Bradley
Published in 1968.
Sort by:
Citations
(8672)
Fiscal policy and the duration of financial crises
Roland Craigwell
,
Troy Lorde
,
Winston Moore
Journal:
Applied Economics  APPL ECON
, vol. 45, no. 6, pp. 793801, 2013
Publiclyfunded R&D programs and survival of patents
Roger Svensson
Journal:
Applied Economics  APPL ECON
, vol. 45, no. 10, pp. 13431358, 2013
Parameter Estimation from LoadSharing System Data Using the ExpectationMaximization Algorithm
Chanseok Park
Journal:
Iie Transactions
, vol. 45, pp. 147163, 2013
Whole Transcriptome RNASeq Analysis of Breast Cancer Recurrence Risk Using FormalinFixed ParaffinEmbedded Tumor Tissue
Dominick Sinicropi
,
Kunbin Qu
,
Francois Collin
,
Michael Crager
,
MeiLan Liu
,
Robert J. Pelham
,
Mylan Pho
,
Andrew Dei Rossi
,
Jennie Jeong
,
Aaron Scott
,
Ranjana Ambannavar
,
Christina Zheng
http://academic.research.microsoft.com/io.ashx?type=5&id=57406270&selfId1=0&selfId2=0&maxNumber=12&query=
Journal:
PLOS One
, vol. 7, no. 7, 2012
What are a patient's current chances of finding a matched unrelated donor? Twenty years’ central search experience in a small country
A Rosenmayr
,
M PointnerPrager
,
A Mitterschiffthaler
,
L Bozic
,
B Pelzmann
,
H Tüchler
,
I Fae
,
G F Fischer
,
H T Greinix
,
Ch Peters
,
P Kalhs
,
O Krieger
http://academic.research.microsoft.com/io.ashx?type=5&id=56543897&selfId1=0&selfId2=0&maxNumber=12&query=
Journal:
Bone Marrow Transplantation  BONE MARROW TRANSPLANT
, vol. 47, no. 2, pp. 172180, 2012