Results 91 to 100 of about 116,790,732 (312)

Perceived Impacts and Predictors of Cannabis Products Used by Patients with Rheumatologic Conditions in Alberta, Canada: A Multivariable Analysis of Cross‐Sectional Survey Data

open access: yesArthritis Care &Research, EarlyView.
Objective This study aimed to characterize cannabis product choices (cannabinoid content and formulation) among patients with rheumatologic conditions and their associations with patient factors, patient‐reported perceived side effects, and positive impacts.
Susan Zhang   +10 more
wiley   +1 more source

Gaussian semiparametric estimation of multivariate fractionally integrated processes [PDF]

open access: yes
This paper analyzes the semiparametric estimation of multivariate long-range dependent processes. The class of spectral densities considered includes multivariate fractionally integrated processes, which are not covered by the existing literature.
Katsumi Shimotsu
core  

Multivariate analysis of the volumetric capnograph for PaCO2 estimation.

open access: yesInternational journal of burns and trauma, 2015
End-tidal CO2 (eTCO2) can be used to estimate the arterial CO2 (PaCO2) under steady-state conditions, but that relationship deteriorates during hemodynamic or respiratory instability. We developed a multivariate method to improve our ability to estimate the PaCO2, by using additional information contained in the volumetric capnograph (Vcap) waveform ...
Slava M, Belenkiy   +6 more
openaire   +1 more source

The multivariate Bernoulli detector: change point estimation in discrete survival analysis

open access: yesBiometrics
Abstract Time-to-event data are often recorded on a discrete scale with multiple, competing risks as potential causes for the event. In this context, application of continuous survival analysis methods with a single risk suffers from biased estimation.
Willem van den Boom   +3 more
openaire   +4 more sources

Estimation of the Number of “True” Null Hypotheses in Multivariate Analysis of Neuroimaging Data

open access: yesNeuroImage, 2001
The repeated testing of a null univariate hypothesis in each of many sites (either regions of interest or voxels) is a common approach to the statistical analysis of brain functional images. Procedures, such as the Bonferroni, are available to maintain the Type I error of the set of tests at a specified level.
Turkheimer, F E, Smith, C B, Schmidt, K
openaire   +3 more sources

Neighborhood Socioeconomic Status and Short‐Term Functional Outcomes in Systemic Lupus Erythematosus

open access: yesArthritis Care &Research, EarlyView.
Objective Individuals with systemic lupus erythematosus (SLE) can accumulate functional status (FS) impairment. We evaluated the association between neighborhood socioeconomic disadvantage, as measured by the Area Deprivation Index (ADI), and FS in a national SLE sample.
Baljeet Rai   +7 more
wiley   +1 more source

Limited Information Estimation and Testing of Discretized Multivariate Normal Structural Models [PDF]

open access: yes
(WP03/03 Clave pdf) We consider the estimation of multivariate normal structural models that have been discretized according to a set of thresholds. A popular estimation procedure for this restricted multinomial model consists in the following three ...
ALBERTO MAYDEU
core  

Approximate inference of the bandwidth in multivariate kernel density estimation [PDF]

open access: yes, 2011
Kernel density estimation is a popular and widely used non-parametric method for data-driven density estimation. Its appeal lies in its simplicity and ease of implementation, as well as its strong asymptotic results regarding its convergence to the true ...
Sanguinetti, G.   +3 more
core   +1 more source

Associations of Lifestyle‐Related Factors and Psoriatic Arthritis Disease Activity: The Dutch South West Psoriatic Arthritis Study

open access: yesArthritis Care &Research, EarlyView.
Objective This study aims to investigate lifestyle‐related factors in patients with psoriatic arthritis (PsA) and their association with disease activity measurements. Methods This multicenter cohort included 938 patients who were newly diagnosed with PsA between 2013 and 2023.
Batoul Hojeij   +11 more
wiley   +1 more source

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