scholarly journals Doubly Robust Regression Analysis for Data Fusion

2021 ◽  
Author(s):  
Katherine Evans ◽  
BaoLuo Sun ◽  
James Robins ◽  
Eric J. Tchetgen Tchetgen
Keyword(s):  
Regression Analysis ◽  
Data Fusion ◽  
Robust Regression ◽  
Doubly Robust

scholarly journals Robust Regression Analysis of GCMS Data Reveals Differential Rewiring of Metabolic Networks in Hepatitis B and C Patients

Metabolites ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 51 ◽  
Author(s):  
Cedric Simillion ◽  
Nasser Semmo ◽  
Jeffrey Idle ◽  
Diren Beyoğlu
Keyword(s):  
Regression Analysis ◽  
Hepatitis B ◽  
Metabolic Networks ◽  
Robust Regression

Parameter Estimation in Marketing Models in the Presence of Influential Response Data: Robust Regression and Applications

1984 ◽  
Vol 21 (3) ◽  
pp. 268-277 ◽  
Author(s):  
Vijay Mahajan ◽  
Subhash Sharma ◽  
Yoram Wind
Keyword(s):  
Parameter Estimation ◽  
Regression Analysis ◽  
Least Squares ◽  
Robust Regression ◽  
Ordinary Least Squares ◽  
Regression Coefficients ◽  
Parameter Estimates ◽  
Response Data ◽  
Marketing Models ◽  
Marketing Data

In marketing models, the presence of aberrant response values or outliers in data can distort the parameter estimates or regression coefficients obtained by means of ordinary least squares. The authors demonstrate the potential usefulness of the robust regression analysis in treating influential response values in marketing data.

Robust Regression: Analysis and Applications

Technometrics ◽  
1991 ◽  
Vol 33 (2) ◽  
pp. 239-240
Author(s):  
David Fairley
Keyword(s):  
Regression Analysis ◽  
Robust Regression

Religious Nationalism and Perceptions of Muslims and Islam

2015 ◽  
Vol 8 (3) ◽  
pp. 435-457 ◽  
Author(s):  
Allyson F. Shortle ◽  
Ronald Keith Gaddie
Keyword(s):  
Regression Analysis ◽  
Religious Identity ◽  
Robust Regression ◽  
Christian Identity ◽  
Religious Nationalism ◽  
Evangelical Christian ◽  
Biblical Literalism ◽  
Original Survey ◽  
The Relationship ◽  
Christian Nationalism

AbstractWe test for relationships between anti-Muslim attitudes and opinion and competing religious identity and religious belief variables in an evangelical Christian constituency. Original survey data from a statewide sample of 508 likely voters in Oklahoma are subjected to a robust regression analysis to determine (1) indicators of holding Christian nationalist beliefs and (2) the relationship between belief measures of Christian nationalism, evangelical Christian identity, and subsequent anti-Muslim sentiment. Christian nationalism is more prevalent among self-identified evangelicals. Christian nationalist beliefs and strong belief in Biblical literalism are significantly related to negative and restrictive views of Muslims. Anti-Muslim sentiments in the form of general disapproval and the desire to limit Muslim worship are shaped more by beliefs than identities or behaviors. Evangelical self-identification does not help us disentangle domestic opinion regarding Muslims as well as measures that disentangle beliefs from identity.

scholarly journals An assessment for Diagnostic and Therapeutic Modalities for Management of Pediatric Iron Defficiency Anemia in Saudi Arabia: a Crossectional Study

2019 ◽  
Author(s):  
Hadi J Al Sulayyim ◽  
Ali Al Omari ◽  
Motasim Badri
Keyword(s):  
Regression Analysis ◽  
Family Medicine ◽  
Robust Regression ◽  
Tertiary Care ◽  
Diagnosis And Treatment ◽  
Deficiency Anemia ◽  
Public Health Issue ◽  
Public Healthcare ◽  
Therapeutic Modalities ◽  
Validated Questionnaire

Abstract Abstract (249 words). Introduction : Iron deficiency anemia (IDA) is a global public health issue that affect more than 2 billion individuals worldwide. However evidence for optimal management of IDA is lacking. Methods : To assess the diagnostic criteria and therapeutic modalities for pediatric IDA employed by physicians in a major public healthcare facility in Riyadh, a validated questionnaire including demographic data and patient case-scenarios related to diagnosis and treatment of IDA was employed. Robust regression analysis was used to identify factors associated with overall score of participants. Results : Of the 166 physicians surveyed 147(88.6%) were included in the study. Wide variability was observed in IDA diagnosis and therapy practises. For nutritional IDA, only 15.6% recommended no other laboratory tests in addition to CBC. The majority preferred treatment with ferrous sulfate (77.6%) divided into two doses (57.1%), but the total daily elemental iron doses varied widely from 2 to 6 mg/kg. For intravenous iron, 42.9% recommended iron dextran, 32.7% iron sucrose, and 13.4% would continue oral iron. Of all assessed factors, median score was significantly highest in pediatric hematologists compared with pediatricians, family medicine specialists and GPs; p=0.007, and those work in tertiary care compared with those in primary care; p=0.043. However, in multivariate robust regression analysis, overall score was only significantly associated with professional qualification [pediatric hematologist β= 13.71,95%CI 2.48-24.95, p=0.017; pediatrician β= 1.77,95%C (-6.05-9.59, p=0.66; family medicine β= 2.66,95%CI-4.30-9.58, p=0.45 compared with general practitioner]. Conclusion : Wide variations exist among physicians in diagnosis and treatment of pediatric IDA. Intervention programs and national guidelines are urgently needed.

scholarly journals The Association Between Alpha-1 Adrenergic Receptor Antagonists and In-Hospital Mortality from COVID-19

2020 ◽  
Author(s):  
Liam Rose ◽  
Laura Graham ◽  
Allison Koenecke ◽  
Michael Powell ◽  
Ruoxuan Xiong ◽  
...  
Keyword(s):  
Hospital Mortality ◽  
Adrenergic Receptor ◽  
Robust Regression ◽  
Relative Risk Reduction ◽  
Veterans Affairs ◽  
Department Of Veterans Affairs ◽  
Receptor Antagonists ◽  
Cohort Design ◽  
Doubly Robust ◽  
Time Of Admission

AbstractEffective therapies for coronavirus disease 2019 (COVID-19) are urgently needed, and preclinical data suggest alpha-1 adrenergic receptor antagonists (α1-AR antagonists) may be effective in reducing mortality related to hyperinflammation. Using a retrospective cohort design with patients in the Department of Veterans Affairs healthcare system, we use doubly robust regression and matching to estimate the association between use of α1-AR antagonists at time of hospitalization and likelihood of death due to COVID-19 during an inpatient stay. Having an active prescription for an α1-AR antagonist (tamsulosin, silodosin, prazosin, terazosin, doxazosin, or alfuzosin) at the time of admission had a significant negative association with in-hospital mortality (relative risk reduction 14%; odds ratio 0.75; 95% CI 0.66 to 0.86; p ≤ 0.001). These effects were also found in an expanded cohort of suspected COVID-19 patients, supporting the need for clinical trials.

Predicting Diagenetic Facies in a Tight Sandstone Reservoir Using Robust Regression Analysis

2020 ◽  
Vol 104 (sp1) ◽  
Author(s):  
Meng Wang ◽  
Shizhe Sang ◽  
Zhenyu Ma ◽  
Zhe Kang ◽  
Yunpeng Zhang ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Robust Regression ◽  
Tight Sandstone ◽  
Sandstone Reservoir ◽  
Diagenetic Facies
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