Results 271 to 280 of about 459,261 (336)

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher, Charles B. Malpas, Stuart J. McDonald, William T. O’Brien, Craig Despott, Kelly L. Bertram, Matthew P. Pase, Lukas Frontzkowski, Meng Law, Terence J. O’Brien, Lucy Vivash   +10 more
wiley   +1 more source

Proportional Hazards Model on Attrition and its Predictors in Community Antiretroviral Refill Groups among ART Users in Eastern Ethiopia. [PDF]

J Int Assoc Provid AIDS Care
Asmare L, Bayou FD, Arefaynie M, Mekonen AM, Tareke AA, Keleb A, Abera KM, Kebede N, Gebeyehu EM, Ayres A, Tsega Y, Endawkie A, Kebede SD, Abeje ET, Enyew EB, Daba C.   +15 more
europepmc   +1 more source

Calibrating a Proportional Hazards Model with Time-Correlated Covariates: A Case Study in Probability of Default Modelling for Credit Risk Analysis

Brent Oeyen, Themis Rallis
openalex   +1 more source

Log-minus-log plot for Cox proportional hazards model testing first pneumonia hospitalization.

Brandon J. Demkowicz (21367872), Kevin Rader (809506), Shirley V. Wang (21367875), Aaron S. Kesselheim (7445897), William B. Feldman (17403390)   +4 more
openalex   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Proportional hazards (Cox) regression

Journal of General Internal Medicine, 1993
PROPORTIONAL HAZARDS ( C o x ) REGRESSION is a powerful analytic tool for testing whe the r several factors (e.g., cigarette smoking, hyper tens ion) are independent ly related to the rate (over t ime) of a specific event (e.g., heart attack yes /no) . It can also be used to control for baseline differences be t ween groups in nonrandomized studies and
M H, Katz, W W, Hauck
openaire   +2 more sources

Misspecified Proportional Hazard Models

Biometrika, 1986
Let \((N_ i(t)\), \(t\geq 0\), \(i=1,...,n)\) be a counting process in which \(N_ i(t)\) records the number of failures in [0,t] for i-th item, and let \(Y_ i(t)\lambda_ 0(t) \exp (\beta Z_ i)\) \((i=1,...,n)\) be a random intensity process (for \(N_ i)\).
Struthers, C. A., Kalbfleisch, J. D.
openaire   +2 more sources

Proportional Hazard Model

2008
The estimation of duration models has been the subject of significant research in econometrics since the late 1970s. Cox (1972) proposed the use of proportional hazard models in biostatistics and they were soon adopted for use in economics. Since Lancaster (1979), it has been recognized among economists that it is important to account for unobserved ...
Jerry A. Hausman, Tiemen M. Woutersen
openaire   +1 more source

Proportional Hazards in Information Security

Risk Analysis, 2005
Nonparametric methods can be used to analyze failure times and estimate probability distributions for failures of systems due to successful attacks on confidentiality, integrity, and availability in information security. However, such methods do not take full advantage of supplemental information regarding the configurations of systems in an ...
Julie J C H, Ryan, Daniel J, Ryan
openaire   +2 more sources

On Proportional Hazard Functions

Technometrics, 1970
The purpose of this note is to establish and make precise the following proposition: The minimum of independent random variables X and Y is independent of the event X x) if P(X = x ...
Arthur Nádas, Arthur Nadas
openaire   +2 more sources