Results 1 to 10 of about 15,395 (120)

A Privacy-Preserving Log-Rank Test for the Kaplan-Meier Estimator With Secure Multiparty Computation: Algorithm Development and Validation

JMIR Medical Informatics, 2021
BackgroundPatient data is considered particularly sensitive personal data. Privacy regulations strictly govern the use of patient data and restrict their exchange. However, medical research can benefit from multicentric studies in which patient data from
von Maltitz, Marcel, Ballhausen, Hendrik, Kaul, David, Fleischmann, Daniel F, Niyazi, Maximilian, Belka, Claus, Carle, Georg   +6 more
doaj   +2 more sources

Conditional Kaplan–Meier Estimator with Functional Covariates for Time-to-Event Data

Stats, 2022
Due to the wide availability of functional data from multiple disciplines, the studies of functional data analysis have become popular in the recent literature. However, the related development in censored survival data has been relatively sparse.
Sudaraka Tholkage, Qi Zheng, Karunarathna B. Kulasekera   +2 more
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Using the Kaplan–Meier Estimator to Assess the Reliability of Agricultural Machinery

Agronomy, 2022
Kaplan–Meier analyses can be used in many disciplines, e.g., agricultural engineering. Agricultural machinery and vehicles can be regarded as objects that ‘die’ because, like living creatures, they failed, although after repair they can be used until ...
Karol Durczak, Jarosław Selech, Adam Ekielski, Tomasz Żelaziński, Marcin Waleński, Kamil Witaszek   +5 more
doaj   +1 more source

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

Inferences for current chronic graft-versus-host-disease free and relapse free survival

BMC Medical Research Methodology, 2022
This paper provides the methodologies of a new summary curve that measures the dynamic outcome following allogenic hematopoietic cell transplantation.
Xu Zhang, Scott R. Solomon, Connie Sizemore   +2 more
doaj   +1 more source

Survival time and reliability assessment of bulk solids carriers in the mining and logistics industry

Journal of King Saud University: Engineering Sciences, 2021
In complex industrial systems, the deterioration of equipment and production of defective products are important points that increase the costs inherent to the production function.
Saymon Ricardo de Oliveira Sousa, Wesley Vieira da Silva, Claudimar Pereira da Veiga, Roselaine Ruviaro Zanini   +3 more
doaj   +1 more source

Estimation of the Distribution of Duration of Breastfeeding from Cross-Sectional Data: Some Methodological Issue.

Journal of Biostatistics and Epidemiology, 2021
Background: Duration of breastfeeding is an important health indicator of mother and child. There are various indirect epidemiological methods available to estimate the duration of breastfeeding from cross sectional data.
Anup Kumar, Sachin Kumar, Jai Kishun, Uttam Singh, Pushpraj Pushpraj   +4 more
doaj   +1 more source

Estimating Hazard Function and Survival Analysis of Tuberculosis Patients in Erbil city

Tikrit Journal of Administrative and Economic Sciences, 2021
The study aimed to estimate the effects of prognostic factors on tuberculosis (TB) survival. Two models have been studied (Logistic model and Cox regression models) in survival analysis.
Kurdistan Ibrahim Mawlood, Hogr Muhammed Qader   +1 more
doaj   +1 more source

Survival analysis of A.C. machines in the diamond industry using the Kaplan-Meier estimator

MATEC Web of Conferences, 2017
The article deals with the survival analysis of a.c. machines operating under the conditions of the underground mine “Mir” (Yakutia). The estimation of their survival is carried out using the Kaplan-Meier estimator.
Shevchuk Vladislav A., Muravlev Oleg P., Stolyarova Olga O.   +2 more
doaj   +1 more source

Identification of a Novel Prognostic Gene Signature From the Immune Cell Infiltration Landscape of Osteosarcoma

Frontiers in Cell and Developmental Biology, 2021
Background: The tumor microenvironment (TME) mainly comprises tumor cells and tumor-infiltrating immune cells mixed with stromal components. Latestresearch hasdisplayed that tumor immune cell infiltration (ICI) is associated with the clinical outcome of ...
Lei Fan, Jingtao Ru, Tao Liu, Chao Ma
doaj   +1 more source