Results 21 to 30 of about 1,569,089 (229)

Three-year Survival of Women with Breast Cancer in Basrah, Iraq

open access: yesOman Medical Journal, 2020
Objectives: We sought to determine the overall observed three-year survival rate of women with breast cancer in Basrah, Iraq, and investigate the associated factors. Methods: Data was collected retrospectively from the Oncology Center registry in Basrah,
Jasim N. Al-Asadi, Sundus M. Al-Mayah
doaj   +1 more source

Survival analysis of irish amyotrophic lateral sclerosis patients diagnosed from 1995-2010. [PDF]

open access: yesPLoS ONE, 2013
IntroductionThe Irish ALS register is a valuable resource for examining survival factors in Irish ALS patients. Cox regression has become the default tool for survival analysis, but recently new classes of flexible parametric survival analysis tools ...
James Rooney   +7 more
doaj   +1 more source

Moving beyond the Cox proportional hazards model in survival data analysis: a cervical cancer study

open access: yesBMJ Open, 2020
Objectives This study explored the prognostic factors and developed a prediction model for Chinese-American (CA) cervical cancer (CC) patients. We compared two alternative models (the restricted mean survival time (RMST) model and the proportional ...
Lixian Li   +3 more
doaj   +1 more source

Locally R-optimal designs for a class of nonlinear multiple regression models

open access: yesStatistical Theory and Related Fields, 2023
This paper concerns with optimal designs for a wide class of nonlinear models with information driven by the linear predictor. The aim of this study is to generate an R-optimal design which minimizes the product of the main diagonal entries of the ...
Lei He, Rong-Xian Yue
doaj   +1 more source

Survival analysis of postoperative recurrence of meningioma: 176 cases report

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2022
Objective To investigate the influencing factors of postoperative meningioma recurrence. Methods A total of 176 patients with meningioma treated in Beijing Tiantan Hospital, Capital Medical University from May 2010 to January 2011 were included.
HUANG Guan⁃you   +5 more
doaj   +1 more source

CauchyCP: a powerful test under non-proportional hazards using Cauchy combination of change-point Cox regressions [PDF]

open access: yesStatistical Methods in Medical Research. 2021;30(11):2447-2458, 2020
Non-proportional hazards data are routinely encountered in randomized clinical trials. In such cases, classic Cox proportional hazards model can suffer from severe power loss, with difficulty in interpretation of the estimated hazard ratio since the treatment effect varies over time.
arxiv   +1 more source

The Prediction Value of (Neutrophil+Monocyte) /Lymphocyte Ratio on In-hospital Mortality of Heart Failure Patients [PDF]

open access: yesZhongguo quanke yixue, 2023
Background Heart failure (HF) is known to be one of the major problems in the cardiovascular field needed to be urgently addressed due to its high incidence, high mortality and poor prognosis. Searching for the optimal risk assessment method is currently
MA Yanyan, REN Fuxian, WANG Yu, GAO Dengfeng
doaj   +1 more source

Impact of delayed treatment in women diagnosed with breast cancer: A population‐based study

open access: yesCancer Medicine, 2020
The impact of timely treatment on breast cancer‐specific survival may differ by tumor stage. We aim to study the impact of delayed first treatment on overall survival across different tumor stages.
Peh Joo Ho   +5 more
doaj   +1 more source

The comparison of proportional hazards and accelerated failure time models in analyzing the first birth interval survival data

open access: yes, 2018
Survival analysis is a branch of statistics, which is focussed on the analysis of time- to-event data. In multivariate survival analysis, the proportional hazards (PH) is the most popular model in order to analyze the effects of several covariates on the
Alfensi Faruk
semanticscholar   +1 more source

Bidirectional association between knee osteoarthritis and depressive symptoms: evidence from a nationwide population-based cohort

open access: yesBMC Musculoskeletal Disorders, 2022
Background Both knee osteoarthritis (KOA) and depressive symptoms (DS) are major public health issues affecting the quality of life. This study aimed to examine the association between KOA and DS.
Han Lu   +7 more
doaj   +1 more source

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