Results 41 to 50 of about 237,530 (303)

Doubly robust estimator of risk in the presence of censoring dependent on time-varying covariates: application to a primary prevention trial for coronary events with pravastatin

BMC Medical Research Methodology, 2020
Background In the presence of dependent censoring even after stratification of baseline covariates, the Kaplan–Meier estimator provides an inconsistent estimate of risk.
Takuya Kawahara, Tomohiro Shinozaki, Yutaka Matsuyama   +2 more
doaj   +1 more source

Effect on Mortality of Higher Versus Lower β-Blocker (Metoprolol Succinate or Carvedilol) Dose in Patients With Heart Failure [PDF]

, 2018
This study aimed to compare the effect of β-blocker dose and heart rate (HR) on mortality in patients with heart failure with reduced ejection fraction (HFrEF).
Ajam, Samer, Ajam, Tarek, Devaraj, Srikant, Fudim, Marat, Kamalesh, Masoor   +4 more
core   +1 more source

Nonparametric survival analysis of epidemic data

, 2011
This paper develops nonparametric methods for the survival analysis of epidemic data based on contact intervals. The contact interval from person i to person j is the time between the onset of infectiousness in i and infectious contact from i to j, where
Aalen, Aalen, Altshuler, Becker, Becker, Carcione, Cauchemez, Cox, Dempster, Donnelly, Ferguson, Ferguson, Fine, France, Fraser, Kalbfleisch, Kaplan, Kenah, Kenah, Lee, Lipsitch, McBryde, Mills, Morgan, Müller, Nelson, Rampey, Rhodes, Roberts, Sinha, Sugimoto, Svensson, Van der Vaart, Wallinga, Wallinga, Watts, Wegman, White, Yang   +38 more
core   +1 more source

Bias and precision of methods for estimating the difference in restricted mean survival time from an individual patient data meta-analysis

BMC Medical Research Methodology, 2016
Background The difference in restricted mean survival time ( rmstD t ∗ $$ rmstD\left({t}^{\ast}\right) $$ ), the area between two survival curves up to time horizon t ∗ $$ {t}^{\ast } $$ , is often used in cost-effectiveness analyses to estimate the ...
Béranger Lueza, Federico Rotolo, Julia Bonastre, Jean-Pierre Pignon, Stefan Michiels   +4 more
doaj   +1 more source

Time-to-event analysis

Perspectives in Clinical Research
Survival analysis (or time-to-event analysis) deals with data where the outcome of interest is the length of time until the occurrence of an event. This type of analysis is unique because the event may not occur in all participants (known as censoring ...
Priya Ranganathan, Vishal Deo, C. S. Pramesh   +2 more
doaj   +1 more source

Comparison of subsequent infection in methicillin-resistant Staphylococcus aureus nasal carriers between ST72 community-genotype and hospital genotypes: a retrospective cohort study

Antimicrobial Resistance and Infection Control, 2017
Background Carriage of methicillin-resistant Staphylococcus aureus (MRSA) is an important risk factor of subsequent infection. The purpose of our study was to compare the rates of subsequent infection among newly-admitted patients carrying MRSA between ...
So Yeon Park, Doo Ryeon Chung, Yu Ri Kang, So Hyun Kim, Sun Young Cho, Young Eun Ha, Cheol-In Kang, Kyong Ran Peck, Jae-Hoon Song   +8 more
doaj   +1 more source

Turnbull versus Kaplan-Meier estimators of cure rate estimation using interval censored data [PDF]

, 2012
This study deals with the analysis of the cure rate estimation based on the Bounded Cumulative Hazard (BCH) model using interval censored data, given that the exact distribution of the data set is unknown.
Abu Bakar, Mohd Rizam, Aljawadi, Bader Ahmad I., Ibrahim, Noor Akma   +2 more
core  

Adherence to Protocol Recommendations for Children With Wilms Tumour in Two Consecutive Studies in the United Kingdom and Ireland—Does Variation Matter?

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Wilms tumour (WT) has excellent event‐free and overall survival (OS). However, small differences exist between countries participating in the same international study. This led us to examine variation in adherence to protocol recommendations as a potential contributing factor.
Suzanne Tugnait, R. Al‐Saadi, A. Lopez‐Cortes, K. Dzhuma, M. Oostveen, J. Brok, S. Irtan, M. Weeks, J. Bate, S. Baker, R. Williams, M. Powis, D. Saunders, O. Olsen, T. Watson, S. Shelmerdine, S. Vaidya, L. Howell, C. Duncan, G. M. Vujanic, C. Stiller, G. P. Balchin, T. Chowdhury, K. Pritchard‐Jones   +23 more
wiley   +1 more source

Adjuvant Chemotherapy Benefit in Elderly Stage II/III Colon Cancer Patients

Frontiers in Oncology, 2022
BackgroundStudies providing more evidence to guide adjuvant chemotherapy decisions in elderly colon cancer patients are expected. MethodsWe obtained data from the Surveillance, Epidemiology and End Results (SEER) database between 2004 and 2012.
Xin Chen, Junhao Tu, Xiaolan Xu, Wen Gu, Lei Qin, Haixin Qian, Zhenyu Jia, Chuntao Ma, Yinkai Xu   +8 more
doaj   +1 more source

A Combined Score of Circulating miRNAs Allows Outcome Prediction in Critically Ill Patients [PDF]

, 2019
Background and aims: Identification of patients with increased risk of mortality represents an important prerequisite for an adapted adequate and individualized treatment of critically ill patients.
Benz, Fabian, Koch, Alexander, Loosen, Sven H., Luedde, Mark, Luedde, Tom, Roderburg, Christoph, Spehlmann, Martina, Tacke, Frank, Trautwein, Christian, Vucur, Mihael, Wree, Alexander   +10 more
core   +2 more sources