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Discrete choice experiment

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https://www.readbyqxmd.com/read/29168614/eastern-gray-squirrels-are-consistent-shoppers-of-seed-traits-insights-from-discrete-choice-experiments
#1
Mekala Sundaram, Nathanael I Lichti, Nicole J Olynk Widmar, Robert K Swihart
Seeds of many hardwood trees are dispersed by scatter-hoarding rodents, and this process is often mediated by the traits of seeds. Although numerous studies have linked seed traits to seed preference by rodents, little is known about how rodents forage for seeds when multiple desirable and undesirable seed traits are available simultaneously. Here, we adopt a novel method of designing choice experiments to study how eastern gray squirrels (Sciurus carolinensis) select for 6 traits (caloric value, protein content, tannin concentration, kernel mass, dormancy period and toughness of shell) among seeds...
November 23, 2017: Integrative Zoology
https://www.readbyqxmd.com/read/29167657/choices-regarding-thrombolysis-are-modified-by-the-way-to-transfer-the-messages
#2
Jingjing Gong, Yan Zhang, Hongyan Gao, Wei Wei, Jing Lv, Hongyun Liu, Yonghua Huang
Although thrombolysis is the most effective medical treatment for acute ischemic stroke, many stroke patients eligible for thrombolysis miss this treatment as a result of delay or refusal by the patients and/or their proxies. To explore the influences of prognostic information for different intervals from stroke onset to the start of thrombolytic treatment (OTT) and other factors on the preferences of patients/proxies regarding thrombolytic therapy, a cross-sectional, discrete-choice experiment was performed between August 2013 and September 2014...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29162038/a-qualitative-study-on-singaporean-women-s-views-towards-breast-cancer-screening-and-single-nucleotide-polymorphisms-snps-gene-testing-to-guide-personalised-screening-strategies
#3
Xin Yi Wong, Kok Joon Chong, Janine A van Til, Hwee Lin Wee
BACKGROUND: Breast cancer is the top cancer by incidence and mortality in Singaporean women. Mammography is by far its best screening tool, but current recommended age and interval may not yield the most benefit. Recent studies have demonstrated the potential of single nucleotide polymorphisms (SNPs) to improve discriminatory accuracy of breast cancer risk assessment models. This study was conducted to understand Singaporean women's views towards breast cancer screening and SNPs gene testing to guide personalised screening strategies...
November 21, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29161192/patient-preferences-in-subglottic-stenosis-treatment-a-discrete-choice-experiment
#4
Matthew R Naunheim, Margaret L Naunheim, Vinay K Rathi, Ramon A Franco, Mark G Shrime, Phillip C Song
Objectives Subglottic stenosis can be addressed with several different surgical techniques, but patient preferences for these treatment modalities are poorly understood. Economic methods are increasingly being used to understand how patients make decisions. The objective of this pilot study was to assess preferences in subglottic stenosis treatment using patient-centric stated preference techniques. Study Design Discrete choice experiment (DCE). Setting Academic research facility. Subjects and Methods A computer-based DCE was administered in a monitored setting to volunteers from the general population...
November 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29155278/mecp2-expression-in-a-rat-model-of-risky-decision-making
#5
Jay V Deng, Caitlin A Orsini, Kristy G Shimp, Barry Setlow
Many neuropsychiatric disorders are associated with abnormal decision making involving risk of punishment, but the underlying molecular basis remains poorly understood. Methyl CpG-binding Protein 2 (MeCP2) is an epigenetic factor that regulates transcription by directly binding to methylated DNA. Here, we evaluated MeCP2 expression in the context of risk-taking behaviors using the Risky Decision-making Task (RDT), in which rats make discrete choices between a small "safe" food reward and a large "risky" food reward accompanied by varying probabilities of punishment...
November 16, 2017: Neuroscience
https://www.readbyqxmd.com/read/29132355/criteria-for-prioritization-of-hiv-programs-in-viet-nam-a-discrete-choice-experiment
#6
Ali Safarnejad, Milena Pavlova, Vo Hai Son, Huynh Lan Phuong, Wim Groot
BACKGROUND: With the decline in funding for Viet Nam's response to the HIV epidemic, there is a need for evidence on the criteria to guide the prioritization of HIV programs. There is a gap in the research on the relative importance of multiple criteria for prioritizing a package of interventions. This study elicits preferences and the trade-offs made between different HIV programs by relevant stakeholders and decision-makers in Viet Nam. It also pays attention to how differences in social and professional characteristics of stakeholders and their agency affiliations shape preferences for HIV program criteria in Viet Nam...
November 13, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/29130697/-preferences-for-the-attributes-of-home-enteral-nutrition-hen-in-spain-do-caregivers-know-their-patients-preferences
#7
Gabriel Olveira, Miguel Ángel Martínez-Olmos, Belén Fernández de Bobadilla, Mercedes Ferrer, Nuria Virgili, Belén Vega, Mercedes Blanco, Miquel Layola, Luis Lizán, Susana Aceituno
INTRODUCTION: Establishing a home enteral nutrition (HEN) that is adapted to the patient's needs and preferences can improve their quality of life and adherence, contributing to a higher treatment efficiency, better prognosis and cost reduction. As in most cases, patients need total or partial help from their caregivers, and there is a need for evaluating how well do caregivers know their patients' priorities. OBJECTIVES: Exploring patients' preferences for HEN characteristics in Spain, and the concordance between patients and caregivers...
October 24, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29123377/parents-views-on-their-children-s-use-of-eye-drops-and-willingness-to-accept-a-new-sustained-release-subconjunctival-injection
#8
Semra Ozdemir, Hong King Wu, Eric A Finkelstein, Tina T Wong
Aim: The objectives of this study were to explore parents' views about their children's use of regular eye drops and whether they would consider a sustained-release subconjunctival injection as a replacement for daily drops. Methods: A survey was conducted with 134 parents of children with chronic eye diseases at the Singapore National Eye Centre. Parents were asked their views about their children's use of eye drops and were then presented with a discrete choice experiment that, via a series of trade-off tasks, allowed for estimating demand for a series of hypothetical subconjunctival injections that varied along product features, including interval between administrations, risk of complications, out-of-pocket cost and whether it is recommended by the patient's treating physician...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29110022/german-patients-and-physicians-preferences-for-systemic-psoriasis-treatments-a-nationwide-comparative-discrete-choice-experiment-psocompare
#9
Marthe-Lisa Schaarschmidt, Raphael Herr, Mandy Gutknecht, Katharina Wroblewska, Sascha Gerdes, Michael Sticherling, Matthias Augustin, Wiebke K Ludwig-Peitsch
Systemic antipsoriatic treatment options are increasing rapidly. The aim of this nationwide discrete choice experiment was to compare patients' (n = 222) and physicians' (n = 78) preferences for outcome and process attributes of systemic antipsoriatics using the Relative Importance Score (RIS) for each attribute calculated by dividing the attribute's range by the sum of all attribute ranges times 100. Both groups considered Psoriasis Area and Severity Index 90 (PASI 90) to be most important (RIS 21...
November 7, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/29101681/patient-preferences-for-attributes-of-type-2-diabetes-mellitus-medications-in-germany-and-spain-an-online-discrete-choice-experiment-survey
#10
Carol Mansfield, Mirko V Sikirica, Amy Pugh, Christine M Poulos, Victoria Unmuessig, Raul Morano, Alan A Martin
INTRODUCTION: Understanding patient preferences for attributes of type 2 diabetes mellitus (T2DM) medications may help explain how the attributes differentially affect patient perceptions and behaviors. In this survey, we quantified the relative preferences among patients in Germany and Spain in separate analyses. METHODS: A stated-preference, discrete-choice experiment (DCE) survey was designed to elicit preferences for T2DM treatment attributes among patients with self-reported T2DM and who reported being prescribed T2DM medication for > 2 years...
December 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29101225/weighing-the-social-and-ethical-considerations-of-maternal-fetal-surgery
#11
Ryan M Antiel, Alan W Flake, Christopher A Collura, Mark P Johnson, Natalie E Rintoul, John D Lantos, Farr A Curlin, Jon C Tilburt, Stephen D Brown, Chris Feudtner
OBJECTIVES: The ethics of maternal-fetal surgery involves weighing the importance of potential benefits, risks, and other consequences involving the pregnant woman, fetus, and other family members. We assessed clinicians' ratings of the importance of 9 considerations relevant to maternal-fetal surgery. METHODS: This study was a discrete choice experiment contained within a 2015 national mail-based survey of 1200 neonatologists, pediatric surgeons, and maternal-fetal medicine physicians, with latent class analysis subsequently used to identify groups of physicians with similar ratings...
November 3, 2017: Pediatrics
https://www.readbyqxmd.com/read/29097588/the-impact-of-flavour-device-type-and-warning-messages-on-youth-preferences-for-electronic-nicotine-delivery-systems-evidence-from-an-online-discrete-choice-experiment
#12
Ce Shang, Jidong Huang, Frank J Chaloupka, Sherry L Emery
OBJECTIVE: To examine the impact of flavour, device type and health warning messages on youth preference for electronic nicotine delivery systems (ENDS), and to provide evidence and data to inform the Food and Drug Administration's potential regulatory actions on ENDS. DESIGN: An online discrete choice experiment was conducted in September 2015. Each participant was given nine choice sets and asked to choose one out of two alternative ENDS products, with varying characteristics in three attributes (flavour, device type and warning message)...
November 2, 2017: Tobacco Control
https://www.readbyqxmd.com/read/29094086/breast-cancer-knowledge-behaviors-and-preferences-in-malawi-implications-for-early-detection-interventions-from-a-discrete-choice-experiment
#13
Racquel E Kohler, Satish Gopal, Clara N Lee, Bryan J Weiner, Bryce B Reeve, Stephanie B Wheeler
Purpose: Breast cancer is the most common female cancer in Africa and leading cause of death resulting from cancer; however, many countries lack early detection services. In Malawi, women are frequently diagnosed with large tumors after long symptomatic periods. Little is known about local cancer knowledge. Methods: We administered a cross-sectional survey with a discrete choice experiment to a random sample in urban and rural areas of Lilongwe district. Bivariable and multivariable analyses determined factors associated with knowledge...
October 2017: Journal of Global Oncology
https://www.readbyqxmd.com/read/29090948/carer-preferences-for-home-support-services-in-later-stage-dementia
#14
Eleni Kampanellou, Helen Chester, Linda Davies, Sue Davies, Clarissa Giebel, Jane Hughes, David Challis, Paul Clarkson
OBJECTIVES: To examine the relative importance of different home support attributes from the perspective of carers of people with later-stage dementia. METHOD: Preferences from 100 carers, recruited through carers' organisations, were assessed with a Discrete Choice Experiment (DCE) survey, administered online and by paper questionnaire. Attributes were informed by an evidence synthesis and lay consultations. A conditional logit model was used to estimate preference weights for the attributes within a home support 'package'...
November 1, 2017: Aging & Mental Health
https://www.readbyqxmd.com/read/29090384/a-discrete-choice-experiment-to-assess-cancer-patients-preferences-for-when-and-how-to-make-treatment-decisions
#15
Anne Herrmann, Rob Sanson-Fisher, Alix Hall, Laura Wall, Nicholas Zdenkowski, Amy Waller
PURPOSE: Cancer patients can be overwhelmed when being confronted with their diagnosis and treatment options. Such information is often provided during one consultation between the patient and treating clinician. In order to achieve optimal cancer care, there may be justification for alternative consultation styles. We assessed, in a sample of adult medical oncology patients, their preferences for (i) attending one 40-min consultation or two 20-min consultations and (ii) receiving written only or both written and online information, when making a cancer treatment decision...
October 31, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29080435/specialty-training-for-the-retention-of-malawian-doctors-a-cost-effectiveness-analysis
#16
Kate L Mandeville, Kara Hanson, Adamson S Muula, Titha Dzowela, Godwin Ulaya, Mylène Lagarde
Few medical schools and sustained emigration have led to low numbers of doctors in many sub-Saharan African countries. The opportunity to undertake specialty training has been shown to be particularly important in retaining doctors. Yet limited training capacity means that doctors are often sent to other countries to specialise, increasing the risk that they may not return. Expanding domestic training, however, may be constrained by the reluctance of doctors to accept training in their home country. We modelled different policy options in an example country, Malawi, to examine the cost-effectiveness of expanding specialty training to retain doctors in sub-Saharan Africa...
October 16, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/29079037/are-patients-willing-to-travel-for-better-ovarian-cancer-care
#17
David I Shalowitz, Esther Nivasch, Robert A Burger, Marilyn M Schapira
OBJECTIVE: Improved outcomes realized by patients treated at high-volume institutions have led to a call for centralization of ovarian cancer care. However, it is unknown whether centralization respects patients' preferences regarding treatment location. This study's objective was to determine how patients balance survival benefit against the burdens of travel to a distant treatment center. METHODS: Patients presenting for evaluation of adnexal masses completed two discrete choice experiments (DCEs) assessing 1) the 5-year survival benefit required to justify 50miles of additional travel, and 2) the additional distance patients would travel for a 6% 5-year survival benefit...
October 24, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/29076867/patient-and-oncology-nurse-preferences-for-the-treatment-options-in-advanced-melanoma-a-discrete-choice-experiment
#18
Frank Xiaoqing Liu, Edward A Witt, Scot Ebbinghaus, Grace DiBonaventura Beyer, Enrique Basurto, Richard W Joseph
BACKGROUND: Understanding the perceptions of patients and oncology nurses about the relative importance of benefits and risks associated with newer treatments of advanced melanoma can help to inform clinical decision-making. OBJECTIVES: The aims of this study were to quantify and compare the views of patients and oncology nurses regarding the importance of attributes of treatments of advanced melanoma. METHODS: A discrete choice experiment (DCE) was conducted in US-based oncology nurses and patients diagnosed with advanced melanoma...
October 25, 2017: Cancer Nursing
https://www.readbyqxmd.com/read/29070940/education-and-patient-preferences-for-treating-type-2-diabetes-a-stratified-discrete-choice-experiment
#19
Ellen M Janssen, Daniel R Longo, Joan K Bardsley, John Fp Bridges
PURPOSE: Diabetes is a chronic condition that is more prevalent among people with lower educational attainment. This study assessed the treatment preferences of patients with type 2 diabetes by educational attainment. METHODS: Patients with type 2 diabetes were recruited from a national online panel in the US. Treatment preferences were assessed using a discrete-choice experiment. Participants completed 16 choice tasks in which they compared pairs of treatment profiles composed of six attributes: A1c decrease, stable blood glucose, low blood glucose, nausea, treatment burden, and out-of-pocket cost...
2017: Patient Preference and Adherence
https://www.readbyqxmd.com/read/29058478/improving-the-quality-of-discrete-choice-experiments-in-health-how-can-we-assess-validity-and-reliability
#20
Ellen M Janssen, Deborah A Marshall, A Brett Hauber, John F P Bridges
The recent endorsement of discrete-choice experiments (DCEs) and other stated-preference methods by regulatory and health technology assessment (HTA) agencies has placed a greater focus on demonstrating the validity and reliability of preference results. Areas covered: We present a practical overview of tests of validity and reliability that have been applied in the health DCE literature and explore other study qualities of DCEs. From the published literature, we identify a variety of methods to assess the validity and reliability of DCEs...
October 23, 2017: Expert Review of Pharmacoeconomics & Outcomes Research
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