Results 81 to 90 of about 304,906 (296)

Model Selection Strategy for Cox Proportional Hazards Model

Dhaka University Journal of Science, 2019
Often in survival regression modelling, not all predictors are relevant to the outcome variable. Discarding such irrelevant variables is very crucial in model selection. In this research, under Cox Proportional Hazards (PH) model we study different model selection criteria including Stepwise selection, Least Absolute Shrinkage and Selection Operator ...
Md Jamil Hasan Karami, Fabiha Binte Farooq   +1 more
openaire   +2 more sources

Risk Prediction Models for Recurrence After Curative Treatment of Early‐Stage or Locally Advanced Lung Cancer: A Systematic Review

Aging and Cancer, EarlyView.
This systematic review synthesizes prognostic models for survival and recurrence in resected non‐small cell lung cancer. While many models demonstrate moderate to good discrimination, few are externally validated and reporting quality is variable, limiting clinical applicability and highlighting the need for robust, transparent model development ...
Evangeline Samuel, S. Tissera, E. Paul, J. Zalcberg, R. G. Stirling   +4 more
wiley   +1 more source

Tracking Motor Progression and Device‐Aided Therapy Eligibility in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterise the progression of motor symptoms and identify eligibility for device‐aided therapies in Parkinson's disease, using both the 5‐2‐1 criteria and a refined clinical definition, while examining differences across genetic subgroups.
David Ledingham, Sahana Sathyanarayana, Charlotte B. Stewart, Robyn Iredale, Victoria Foster, Debra Galley, Mark Baker, Nicola Pavese   +7 more
wiley   +1 more source

The risk factors of infant mortality in Somalia: evidence from the 2018/2019 Somali health & demographic survey

BMC Pediatrics
Background Globally, infant mortality is one of the major public health threats, especially in low-income countries. The infant mortality rate of Somalia stands at 73 deaths per 1000 live births, which is one of the highest infant death rates in the ...
Dahir Abdi Ali, Nasra Abdulhalim Mohamed, Abdirahman Ibrahim Ismail, Gallad Dahir Hassan   +3 more
doaj   +1 more source

What Determines the Duration of Stay of Immigrants in Germany?: Evidence from a Longitudinal Duration Analysis [PDF]

We analyze the return-migration of German immigrants using the latest data of the German Socio- Economic Panel from 1984 to 2006. We conduct a Cox proportional hazard model with years of residence in Germany as waiting time.
Heiko Peters, Sebastian Gundel
core  

The McCance Brain Care Score and Mortality: Evidence From a Large‐Scale Population‐Based Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives This study aimed to examine the relationship between the McCance Brain Care Score (BCS) and mortality in the general population. Methods We conducted a prospective, population‐based cohort study using data from the UK Biobank. Participants with complete data enabling calculation of BCS and full mortality information were included ...
Zhiqiang Xu, Xiaoxiao Wang, Nan Li
wiley   +1 more source

Analysis of time-to-event for observational studies: Guidance to the use of intensity models

, 2020
This paper provides guidance for researchers with some mathematical background on the conduct of time-to-event analysis in observational studies based on intensity (hazard) models.
Abrahamowicz, Michal, Andersen, Per Kragh, Cook, Richard J, Joly, Pierre, Martinussen, Torben, Perme, Maja Pohar, Taylor, Jeremy MG, Therneau, Terry M, van Houwelingen, Hans C   +8 more
core   +1 more source

Super‐Refractory Status Epilepticus (SRSE) in a Patient With Compound Heterozygous OPA1 Variants: Case Report and Literature Review

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Super‐Refractory Status Epilepticus (SRSE) is a rare, life‐threatening neurological emergency with unclear etiology in many cases. Mitochondrial dysfunction, often due to disease‐causing genetic variants, is increasingly recognized as a cause, with each gene producing distinct pathophysiological mechanisms.
Pouria Mohammadi, Lara Basovic, Christopher Michael McGraw   +2 more
wiley   +1 more source

The Duration of Trade Revisited: Continuous-Time vs. Discrete-Time Hazards [PDF]

The recent literature on the duration of trade has predominantly analyzed the determinants of trade flow durations using Cox proportional hazards models.
Hess, Wolfgang, Persson, Maria
core  

A Semiparametric Joint Model for Longitudinal and Time-to- Event Univariate Data in Presence of Cure Fraction [PDF]

, 2007
Many medical investigations generate both repeatedly-measured (longitudinal)biomarker and survival data. One of complex issue arises when investigating the association between longitudinal and time-to-event data when there are cured patients in the ...
A. Salah, Khalid, Abu Bakar, Mohd Rizam, Haron, Kassim, Ibrahim, Noor Akma   +3 more
core