Results 81 to 90 of about 6,412,013 (303)

Bone and Soft Tissue Neoplasms in Infants Versus Older Children: A Report From the Cancer in Young People in Canada Program

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Infant bone and soft tissue neoplasms present distinct clinical challenges and lack large‐scale data to inform treatment decisions. This study aims to characterize bone and soft tissue neoplasms in infants in Canada and to compare their outcomes with those of older pediatric patients.
Samuel Sassine   +21 more
wiley   +1 more source

Propensity score matching with missing covariates via iterated, sequential multiple imputation

open access: yes, 2011
In many observational studies, analysts estimate causal effects using propensity score matching. Estimation of propensity scores is complicated when covariate values intended for collection are in fact missing. To handle the missing data, one approach is
Reiter, Jerome P., Mitra, Robin
core   +1 more source

Impact of Initial Treatment Setting on Survival in Relapsed Pediatric and AYA Bone Sarcomas: A Secondary Analysis of a Prospective Clinical Trial

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Outcomes in relapsed or refractory pediatric and AYA bone sarcomas remain poor, and the impact of early referral to specialized sarcoma centers on survival is unclear. Early centralization of care may improve local and systemic treatment quality, but evidence in this population is limited.
Justyna Antoniuk‐Majchrzak   +9 more
wiley   +1 more source

Treating missing values in INAR(1) models [PDF]

open access: yes
Time series models for count data have found increased interest in recent days. The existing literature refers to the case of data that have been fully observed.
Andersson, Jonas, Karlis, Dimitris
core  

Navigating the missing data maze: exploring multiple imputation techniques for environmental performance index data

open access: yesEnvironmental Research Communications
The Environmental Performance Index (EPI) is widely used to assess a country’s environmental sustainability in terms of climate, environmental health, and ecosystem health.
Muhammed Haziq Muhammed Nor   +4 more
doaj   +1 more source

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye   +33 more
wiley   +1 more source

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida   +6 more
wiley   +1 more source

Imputation of continuous variables missing at random using the method of simulated scores [PDF]

open access: yes
For multivariate datasets with missing values, we present a procedure of statistical inference and state its "optimal" properties. Two main assumptions are needed: (1) data are missing at random (MAR); (2) the data generating process is a multivariate ...
Neri, Laura, Calzolari, Giorgio
core  

Missing Values in Factorial Experiments [PDF]

open access: yesNature, 1956
METHODS of estimating missing values have been discussed by Goulden1. Some applications to factorial experiments were presented by Cochran and Cox2, but they do not give a general formula. If there is one replication of an a × b × c × … f factorial experiment, with n factors A, B, C, … F at a, b, c, … f different levels respectively, then it may be ...
openaire   +2 more sources

Improving Healthcare Prediction of Diabetic Patients Using KNN Imputed Features and Tri-Ensemble Model

open access: yesIEEE Access
Objective: Diabetes ranks as the most prevalent ailment in developing nations. Vital steps to mitigate the consequences of diabetes include early detection and expert medical intervention.
Khaled Alnowaiser
doaj   +1 more source

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