Results 41 to 50 of about 4,698,088 (284)

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

International 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, Selmer Randi, Søgaard Anne, Thelle Dag   +3 more
doaj   +1 more source

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

, 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  

A PRSZT Registry Analysis of Prognostic Factors Influencing Survival and Relapse Rates After Second Allogeneic Hematopoietic Stem Cell Transplantation in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT A second allogeneic (allo‐)hematopoietic stem cell transplantation (HSCT2) is a potential curative option for pediatric patients with acute lymphoblastic leukemia (ALL) following relapse after first allogeneic transplantation (HSCT1), but its efficacy is limited by high relapse rates and transplant‐related toxicity in highly pretreated ...
Ava Momm, Imme Haubitz, Rita Beier, Martin Zimmermann, Andrej Lissat, Peter Bader, Matthias Eyrich, Jan‐Henning Klusmann, Matthias Wölfl, Paul‐Gerhardt Schlegel, Verena Wiegering   +10 more
wiley   +1 more source

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

, 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., Gorman, E., Gray, L., Gray, L., Katikireddi, S. V., Katikireddi, S. V., Leyland, A. H., Leyland, A. H., McCartney, G., McCartney, G., Rutherford, L., Rutherford, L., White, I. R., White, I. R.   +13 more
core   +3 more sources

Evaluation of the Utility of Baseline Echocardiogram in Patients With Standard Risk Precursor B‐Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
Abstract Background A routine baseline echocardiogram is often obtained prior to anthracycline administration in children with cancer. The utility of baseline echocardiogram is unclear in patients with standard risk B‐cell acute lymphoblastic leukemia (SR B‐ALL) as their anthracycline cumulative dose is low.
Ziyad Alrajhi, Alice Pozza, Luc Mertens, Adam Paul Yan, Sarah Alexander   +4 more
wiley   +1 more source

An Efficient Horvitz–Thompson-Type Estimator for Two Sensitive Means Using a Three-Stage Quantitative Randomized Response Under Complex Sampling

Axioms
In many empirical studies, researchers face challenges when addressing sensitive topics as respondents may be reluctant to provide truthful answers due to privacy concerns.
Hamed Salemian, Eisa Mahmoudi, Osama Abdulaziz Alamri   +2 more
doaj   +1 more source

On the Plausibility of the Latent Ignorability Assumption

Econometrics, 2021
The estimation of the causal effect of an endogenous treatment based on an instrumental variable (IV) is often complicated by the non-observability of the outcome of interest due to attrition, sample selection, or survey non-response.
Martin Huber
doaj   +1 more source

Gemcitabine, Docetaxel, Melphalan, Carboplatin as Part of Sequential Cycles of High‐Dose Chemotherapy With Autologous Hematopoietic Stem‐Cell Rescue for Multiply Relapsed/Refractory Pediatric Germ Cell Tumors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Although most malignant germ cell tumors (GCTs) are highly curable with cisplatin‐based therapy, options for patients with multiply relapsed/refractory disease remain limited. For this population, we report the first pediatric use of gemcitabine, docetaxel, melphalan, and carboplatin (GemDMC) as part of sequential cycles of high‐dose ...
Maria Frost, Olayinka Okeleji, Amr Elgehiny, Douglas Harrison, Cynthia Herzog, Jeremy Connors, Demetrios Petropoulos, Priti Tewari, Dristhi Ragoonanan, Yago Nieto, Irtiza N. Sheikh   +10 more
wiley   +1 more source

Estimation Through Calibration Under Stratified Sampling with Non-Response and Measurement Error Effects

Mathematics
In survey sampling, the presence of non-response and measurement error often leads to biased and inefficient estimates, particularly in stratified random sampling designs.
Manoj K. Chaudhary, Mahmoud M. Abdelwahab, Nishtha Bhardwaj, Mustafa M. Hasaballah   +3 more
doaj   +1 more source

A Note on Interviewer Performance Measures in centralised CATI Surveys

Survey Research Methods, 2008
Interviewer performance with respect to convincing sample members to participate in surveys is an important dimension of survey quality. However, unlike in CAPI surveys where each sample case ‘belongs’ to one interviewer, there are hardly any good ...
Oliver Lipps
doaj   +1 more source