Results 31 to 40 of about 4,634,663 (237)

A New Family of Exponential Type Estimators in the Presence of Non-Response

open access: yesJournal of Mathematical and Fundamental Sciences, 2021
We propose families of estimators for the population mean using an exponential function in case of non-response. This situation is examined under two cases, Case I and II. The bias, MSE and minimum MSE are separately obtained for both cases.
Ceren Unal, Cem Kadilar
doaj   +1 more source

Use of record-linkage to handle non-response and improve alcohol consumption estimates in health survey data: a study protocol [PDF]

open access: yes, 2013
<p>Introduction: Reliable estimates of health-related behaviours, such as levels of alcohol consumption in the population, are required to formulate and evaluate policies.
Gorman, E.   +13 more
core   +3 more sources

Some Improved Estimators In Systematic Sampling Under Non-response

open access: yes, 2014
In this paper we have considered the problem of estimating the population mean in systematic sampling using information on an auxiliary variable in presence of non response.
Singh, R. D.   +2 more
core   +1 more source

Viewpoint on handling anti-TNF failure in psoriasis [PDF]

open access: yes, 2013
An association among the occurrence of antidrug antibodies (ADAs), diminished trough serum drug levels (TSDLs) and non-response or loss of response has been described for several tumor necrosis factor alpha (TNF) blocking agents in a variety of diseases,
BRACKE, STEFANIE, Lambert, Jo
core   +1 more source

Improved estimator for the estimation of sensitive variable using ORRT models

open access: yesResearch in Statistics
In this study, we concern with the improved estimation of sensitive variable when there is non-response and measurement error on sensitive variable but the auxiliary variable is non sensitive in nature.
Sunil Kumar, Chanda Rani
doaj   +1 more source

COMPARATIVE CHARACTERISTICS OF PATIENTS WITH RELAPSE OF CHRONIC HEPATITIS C

open access: yesŽurnal Grodnenskogo Gosudarstvennogo Medicinskogo Universiteta, 2018
Background. The diagnosis of chronic hepatitis C (CHC) is established late, often at the stage of advanced fibrosis and cirrhosis of the liver. In the group at risk of developing severe complications are patients who have not responded to antiviral ...
Chernyak S. A.
doaj   +1 more source

Predicting Flow Rate Escalation for Pediatric Patients on High Flow Nasal Cannula Using Machine Learning

open access: yesFrontiers in Pediatrics, 2021
Background: High flow nasal cannula (HFNC) is commonly used as non-invasive respiratory support in critically ill children. There are limited data to inform consensus on optimal device parameters, determinants of successful patient response, and ...
Joshua A. Krachman   +13 more
doaj   +1 more source

The reasons for attrition: we (still) haven't got a clue [PDF]

open access: yes, 2010
This paper describes a small survey (attrition survey) undertaken to ascertain reasons of attrition and non-response in questionnaire responses from student participants as part of a larger longitudinal survey (longitudinal study). Due to difficulties in
Harte, VA, Stewart, J
core  

The Oslo Health Study: The impact of self-selection in a large, population-based survey

open access: yesInternational Journal for Equity in Health, 2004
Background Research on health equity which mainly utilises population-based surveys, may be hampered by serious selection bias due to a considerable number of invitees declining to participate. Sufficient information from all the non-responders is rarely
Bjertness Espen   +3 more
doaj   +1 more source

Multilevel modelling of refusal and non-contact in household surveys: evidence from six UK Government surveys [PDF]

open access: yes, 2009
We analyse household unit non-response in six major UK Government surveys by using a multilevel multinomial modelling approach. The models are guided by current conceptual frameworks and theories of survey participation.
Beerten   +35 more
core   +1 more source

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