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Bias of Maximum-Likelihood estimates in logistic and Cox regression models: A comparative simulation study [PDF]

open access: yes, 2003
Parameter estimates of logistic and Cox regression models are biased for finite samples. In a simulation study we investigated for both models the behaviour of the bias in relation to sample size and further parameters.
Bender, R.   +4 more
core   +2 more sources

Staphylococcus Aureus Bacteriuria as a Predictor of In-Hospital Mortality in Patients with Staphylococcus Aureus Bacteremia. Results of a Retrospective Cohort Study [PDF]

open access: yes, 2020
Staphylococcus aureus bloodstream infection (SA-BSI) is an infection with increasing morbidity and mortality. Concomitant Staphylococcus aureus bacteriuria (SABU) frequently occurs in patients with SA-BSI.
Behnke, Michael   +6 more
core   +1 more source

Statistical methods for elimination of guarantee-time bias in cohort studies: a simulation study

open access: yesBMC Medical Research Methodology, 2017
Background Aspirin has been considered to be beneficial in preventing cardiovascular diseases and cancer. Several pharmaco-epidemiology cohort studies have shown protective effects of aspirin on diseases using various statistical methods, with the Cox ...
In Sung Cho   +6 more
doaj   +1 more source

Building Cox-Type Structured Hazard Regression Models with Time-Varying Effects [PDF]

open access: yes, 2008
In recent years, flexible hazard regression models based on penalised splines have been developed that allow us to extend the classical Cox-model via the inclusion of time-varying and nonparametric effects.
Hartl, Wolfgang   +3 more
core   +1 more source

An exact corrected log-likelihood function for Cox's proportional hazards model under measurement error and some extensions [PDF]

open access: yes, 2002
This paper studies Cox`s proportional hazards model under covariate measurement error. Nakamura`s (1990) methodology of corrected log-likelihood will be applied to the so called Breslow likelihood, which is, in the absence of measurement error ...
Augustin, Thomas
core   +1 more source

Cox Regression untuk Mengetahui Besaran Risiko Terjadinya Kekambuhan Kembali (Relaps) Penyalahgunaan Narkoba

open access: yesJurnal Biometrika dan Kependudukan, 2018
Relapse happened because of factor that affected an addict back to the previous state. Recurrence rate off an addict that had been treated on a various therapeutic center and rehabilitation was higher from 60% until 80%.
Kardita Puspa Monitasari, Diah Indriani
doaj   +1 more source

Smoothed Cox regression [PDF]

open access: yesThe Annals of Statistics, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Survival analysis and Cox regression

open access: yesAllergologia et Immunopathologia, 2011
The data provided by clinical trials are often expressed in terms of survival. The analysis of survival comprises a series of statistical analytical techniques in which the measurements analysed represent the time elapsed between a given exposure and the outcome of a certain event.
N, Benítez-Parejo   +2 more
openaire   +2 more sources

Partially linear censored quantile regression [PDF]

open access: yes, 2009
Censored regression quantile (CRQ) methods provide a powerful and flexible approach to the analysis of censored survival data when standard linear models are felt to be appropriate.
B Honore   +17 more
core   +1 more source

Scalable Sparse Cox's Regression for Large-Scale Survival Data via Broken Adaptive Ridge

open access: yes, 2018
This paper develops a new scalable sparse Cox regression tool for sparse high-dimensional massive sample size (sHDMSS) survival data. The method is a local $L_0$-penalized Cox regression via repeatedly performing reweighted $L_2$-penalized Cox regression.
Kawaguchi, Eric S.   +3 more
core   +1 more source

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