Results 151 to 160 of about 124,411 (298)
Annals of Gastroenterological Surgery, EarlyView.Using a multicenter Japanese colorectal cancer cohort from 25 institutions, we analyzed 1464 patients across all disease stages and tumor locations to determine the prevalence and clinicopathological features of MSI‐H/dMMR colorectal cancer. MSI‐H/dMMR tumors accounted for 9.4% of cases overall, were present in 22% of right‐sided colon cancers, and ...
Yoshihiro Morimoto +27 more
wiley +1 more source
Bootstrap Inference in a Linear Equation Estimated by Instrumental Variables [PDF]
We study several tests for the coefficient of the single right-hand-side endogenous variable in a linear equation estimated by instrumental variables. We show that all the test statistics--Student's t, Anderson-Rubin, Kleibergen's K, and likelihood ratio
Russell Davidson, James G. MacKinnon
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Food insecurity and unemployment among immigrants in the United States
American Journal of Agricultural Economics, EarlyView.Abstract Immigrants can be more vulnerable to economic downturns and, during periods of economic hardship, more likely to experience food insecurity compared to natives. This study examines the differential effect of the unemployment rate on the probability of being food insecure among diverse groups of immigrant households relative to natives in the ...
Siwen Zhou +3 more
wiley +1 more source
A Simple Representation of the Bera-Jarque-Lee Test for Probit Models [PDF]
The inference in probit models relies on the assumption of normality. However, tests of this assumption are not implemented in standard econometric software. Therefore, the paper presents a simple representation of the Bera-Jarque-Lee test, that does not
Joachim Wilde
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American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.ABSTRACT Evidence on developmental milestones in children with arthrogryposis multiplex congenita (AMC) under the age of five is scarce. This multisite cross‐sectional study described developmental status and examined factors associated with milestone attainment in 143 children aged 0–66 months from a pediatric AMC Registry.
Ahlam Zidan +13 more
wiley +1 more source
Multimorbidity and Associations with Cognition and Alzheimer's Disease Biomarkers
Annals of Neurology, EarlyView.Objective Multimorbidity, the coexistence of 2 or more chronic conditions, has been linked to cognitive aging and Alzheimer's disease (AD) and AD‐related dementias, yet the mechanisms remain unclear. We aimed to examine the associations of multimorbidity with cognition and biomarkers across multiple mechanistic pathways.
Xiaqing Jiang +45 more
wiley +1 more source
The Wald Test and Cramér–Rao Bound for Misspecified Models in Electromagnetic Source Analysis
, 2008 —By using signal processing techniques, an estimate of activity in the brain from the electro- or magneto-encephalogram (EEG or MEG) can be obtained. For a proper analysis, a test is required to indicate whether the model for brain activity fits.
Hilde M. Huizenga +2 more
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Annals of Neurology, EarlyView.Objective The objective of this study was to quantify incremental diagnostic yield and prognostic value of continuous electroencephalography (cEEG; ≥12 hours) versus a 60‐minute short electroencephalography (sEEG) in predicting post‐stroke epilepsy (PSE) in patients without acute symptomatic seizures.
Kai Michael Schubert +8 more
wiley +1 more source
A Score Test for Individual Heteroscedasticity in a One-way Error Components Model [PDF]
The purpose of this paper is to derive a Rao's efficient score statistic for testing for heteroscedasticity in an error components model with only individual effects. We assume that the individual effect exists and therefore do not test for it.
Lucien GARDIOL, Alberto HOLLY
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