Results 51 to 60 of about 16,829,601 (344)
How to use χ2 test correctly——the log-rank test and the implementation of SAS software
The purpose of this article was to introduce the log-rank test and the SAS implementation. There were many different expression forms for the test statistics of the log-rank tests.
Hu Chunyan, Hu Liangping
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ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu +8 more
wiley +1 more source
Johansen’s Reduced Rank Estimator Is GMM
The generalized method of moments (GMM) estimator of the reduced-rank regression model is derived under the assumption of conditional homoscedasticity.
Bruce E. Hansen
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Summary: In a recent paper [Ann. Math. Stat. 31, 1174--1189 (1960; Zbl 0104.37302)] \textit{A. R. Ansari} and \textit{R. A. Bradley} have shown the equivalence of two rank tests for comparing dispersion, one test due to \textit{D. E. Barton} and \textit{F. N. David} [Ann. Hum. Genet. 22, 250--257 (1958; Zbl 0081.14205)], the other to Ansari and Freund,
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Interactive rank testing by betting
In order to test if a treatment is perceptibly different from a placebo in a randomized experiment with covariates, classical nonparametric tests based on ranks of observations/residuals have been employed (eg: by Rosenbaum), with finite-sample valid inference enabled via permutations.
Boyan Duan +2 more
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ABSTRACT Background 131I‐metaiodobenzylguanidine (131I‐MIBG) radiotherapy is a key treatment for relapsed and refractory (R/R) neuroblastoma (NB). Patients with R/R disease treated in the modern era are increasingly exposed to anti‐GD2 immunotherapy, which exerts selective pressure and may modify both tumor cell state and microenvironment.
Benjamin J. Lerman +7 more
wiley +1 more source
ABSTRACT Background Sickle cell disease (SCD) is a chronic, inherited hemoglobinopathy that requires frequent hospitalization for disease‐related complications. Canadian data on inpatient care is limited. This study compared caregiver‐reported hospital experiences of children with SCD to those with cystic fibrosis (CF), a chronic, autosomal recessive ...
Hailey M. Zwicker +11 more
wiley +1 more source
Spearman rank correlations and Wilcoxon rank tests.
Spearman rank correlations and Wilcoxon rank tests.
Xiaomei Hu (830022), Fan Liu (27437)
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Examining the Otolaryngology Match and Relationships Between Publications and Institutional Rankings
This study examines associations among publication number, National Institutes of Health (NIH) funding rank, medical school research rank, and otolaryngology department ranks of otolaryngology applicants during the 2018-2019 match cycle.
Evan M. Ryan MS +3 more
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Rank tests for unit roots [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Breitung, Jörg, Gouriéroux, Christian
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