Results 111 to 120 of about 2,729,407 (305)

Upper Cervical Cord Area as a Biomarker of Conversion to Secondary Progressive Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study assessed whether upper cervical cord area (UCCA) measured on routine brain MRI can serve as a biomarker of conversion to SPMS. Methods This is a single‐center retrospective cohort study of RRMS patients with cross‐sectional and longitudinal analyses of clinical and MRI data. Future SPMS converters were matched by age, sex,
Nabil K. El Ayoubi, Sola Al Ghazal, Salem Hannoun, Medhat A. Siddik, Nour M. Najjar, Jim Dagher, Joseph Abboud, Myriam G. Semaan, Samia J. Khoury   +8 more
wiley   +1 more source

Constructing two-sided simultaneous confidence intervals for multinomial proportions for small counts in a large number of cells [PDF]

Confidence intervals for multinomial proportions are often constructed using large-sample methods that rely on expected cell counts of 5 or greater. In situations that give rise to a large number of categories, the cell counts may not be of adequate size
Warren L. May, William D. Johnson
core  

A nearly optimal confidence interval for the largest normal mean

, 2010
A single-stage sampling procedure is proposed for obtaining a nearly optimal confidence interval on the largest (or smallest) mean of k independent normal populations when the common variances are unknown.
Chen, Hubert J.; 陳順益; Chen, Shun-yi, Chen, H. J. ; 陳順益; Chen, Shun-yi   +1 more
core   +1 more source

Generalized Confidence Interval for the Common Coefficient of Variation

, 2014
In this article, we consider the problem of constructing the confidence interval and testing hypothesis for the common coefficient of variation (CV) of several normal populations. A new method is suggested using the concepts of generalized p-value and generalized confidence interval. Using this new method and a method proposed by Tian (2005), we obtain
Behboodian, Javad, Jafari, Ali Akbar
openaire   +2 more sources

Thalamo‐Lesional Connectivity Signatures of Bilateral Tonic–Clonic Seizures in Focal Cortical Dysplasia‐Related Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Focal cortical dysplasia (FCD) is the most common etiology of drug‐resistant epilepsy in children. Focal to bilateral tonic–clonic seizures (FBTCS) mark a high risk of drug‐resistant epilepsy and involve thalamocortical circuitry in their generation and propagation.
Hua Xie, Xiaotong Li, Venkata Sita Priyanka Illapani, Leigh N. Sepeta, Jason Schroeder, Chima O. Oluigbo, Madison M. Berl, William D. Gaillard, Nathan T. Cohen   +8 more
wiley   +1 more source

Model-Robust Interval Estimation

, 2003
Confidence intervals are one of the most useful statistical tools. This dissertation is a study of several methods for forming confidence intervals that are insensitive to model assumptions, provided that the mean model for the data is not misspecified.
Gotwalt, Christopher Michael
core  

Fiducial Generalized Confidence Interval of Cpy Under Some Location-Scale Distributions

Process capability indices are a very helpful tool, used mostly in the manufacturing industry to assess the performance of a monitored process. Quantifying the proportion of conforming items within a specified tolerance interval is often essential.
Anis, M. Z., Bera, Kuntal
core   +1 more source

Serostatus-Specific Prognostic Profiles and Phenotype-Dependent Therapeutic Windows in Autoimmune Encephalitis: A Multicenter Cohort Study. [PDF]

Ann Clin Transl Neurol
ABSTRACT Background While autoimmune encephalitis (AE) outcomes vary, serostatus‐specific prognostic determinants and institutional clustering effects remain poorly characterized. We aimed to delineate the distinct prognostic architecture of AE, identifying serostatus‐specific risk factors and potential therapeutic windows.
Tang X, Wang J, Zhu K, Zhang Z, Wu L, Wang W, Li C, Li Q, Li H, Chen J, Lian Z, Liu B, Liu T, Wen C, Wang N, Qun S, Xiao L, Lai Q.   +17 more
europepmc   +2 more sources

Integration of Serum Neurofilament Light Chain and Cortical Dysfunction Improves Diagnostic Accuracy in ALS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine whether integration of serum neurofilament light chain (NfL) and cortical dysfunction improves diagnostic accuracy in amyotrophic lateral sclerosis (ALS) when applied alongside the Gold Coast criteria (GCC). Methods In this prospective study, 148 participants with suspected ALS were recruited (101 ALS and 47 with ALS ...
Aicee Dawn Calma, Nathan Pavey, Yukiko Tsuji, Amirul Ab Ghapar, Mehdi A.J. van den Bos, Bronwen Orden, Grace Lee, Linda Mekhael, Julie Ryder, Cláudia Santos Silva, David McDonald, Fakhria Kakar, Con Yiannikas, Matthew C. Kiernan, David A. Brown, Parvathi Menon, Steve Vucic   +16 more
wiley   +1 more source

Bayesian Estimation for the Single Coefficient of Variation of Zero-Inflated Two-Parameter Rayleigh Distribution

Mathematics
Real data such as road traffic mortality rates and lifetime observations are often zero-inflated and right-skewed. The zero-inflated two-parameter Rayleigh (ZITR) distribution is employed to model such data in this study. The coefficient of variation (CV)
Sasipong Kijsason, Sa-Aat Niwitpong, Suparat Niwitpong   +2 more
doaj   +1 more source