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Discrete choice experiment

Charles E Cunningham, Melanie Barwick, Heather Rimas, Stephanie Mielko, Raluca Barac
Using an online, cross sectional discrete choice experiment, we modeled the influence of 14 implementation attributes on the intention of 563 providers to adopt hypothetical evidence-based children's mental health practices (EBPs). Latent class analysis identified two segments. Segment 1 (12%) would complete 100% of initial training online, devote more time to training, make greater changes to their practices, and introduce only minor modifications to EBPs. Segment 2 (88%) preferred fewer changes, more modifications, less training, but more follow-up...
September 16, 2017: Administration and Policy in Mental Health
Monika Hifinger, Mickael Hiligsmann, Sofia Ramiro, Verity Watson, Florian Berghea, Márta Péntek, Andrew Keat, Johan L Severens, Bruno Fautrel, Annelies Boonen
OBJECTIVE: To assess the influence of disease activity of patients with rheumatoid arthritis on treatment choices of rheumatologists in countries with restricted access to expensive, innovative drugs. METHODS: Rheumatologists from Hungary, Romania and UK were invited to complete two consecutive discrete choice experiments with hypothetical drug treatments for two different patient profiles: high and moderate disease activity. Rheumatologists were asked to choose repeatedly between two unlabelled treatment options that differed in five attributes: efficacy (expected improvement and achieved disease activity state), safety (probability of serious adverse events), patient's preference (level of agreement), total medication costs and cost-effectiveness...
2017: RMD Open
Michael R Vella, Christian E Gunning, Alun L Lloyd, Fred Gould
A gene drive biases inheritance of a gene so that it increases in frequency within a population even when the gene confers no fitness benefit. There has been renewed interest in environmental releases of engineered gene drives due to recent proof of principle experiments with the CRISPR-Cas9 system as a drive mechanism. Release of modified organisms, however, is controversial, especially when the drive mechanism could theoretically alter all individuals of a species. Thus, it is desirable to have countermeasures to reverse a drive if a problem arises...
September 8, 2017: Scientific Reports
Dulce M Minaya, Kimberly L Robertson, Neil E Rowland
The purpose of this study is to examine aspects of operant behavior-modeled economic choice for food in rats in closed economy protocols in which food is available for only a few discrete times per daily 23-h session, designed to emulate clustering of human food intake into meals. In the first experiment, rats performed lever press responses for food pellets in an ascending series of ratios or fixed unit prices (FUP) when food was available for four 40-min food opportunities (FO) per day. Daily intake at low FUP was comparable to ad libitum intakes...
September 5, 2017: Physiology & Behavior
Lauren Brown, Ting-Hsuan Lee, Manuela De Allegri, Krishna Rao, John Fp Bridges
Sub-Saharan African health systems must balance shifting disease burdens with desires for robust institutions. Stated-preference methods have been applied extensively to elicit health care workers' preferences and priorities for rural practice. This systematic review characterizes the range of their applications to African health systems problems. Areas covered: A PRISMA protocol was submitted to PROSPERO. Six databases were queried for peer-reviewed articles using quantitative stated-preference methods to evaluate a health systems-related trade-off...
September 14, 2017: Expert Review of Pharmacoeconomics & Outcomes Research
Mona Loutfy, V Logan Kennedy, Morvarid Sanandaji, Fatimatou Barry, Fanta Ongoiba, Marvelous Muchenje, Wangari Tharao, Dean A Regier
Decision-making related to pregnancy planning is complex and human immunodeficiency virus (HIV) may further complicate the process. With increasing rates of pregnancy among individuals affected by HIV, the need to understand decision-making is imperative. The primary objectives of this pilot study were to confirm the feasibility of using discrete choice experimentation (DCE) to elicit an understanding of this process and to determine the acceptability of the choice factors that were included in two novel DCEs, while gathering a preliminary understanding of preference...
January 1, 2017: International Journal of STD & AIDS
Matthew Quaife, Robyn Eakle, Maria A Cabrera Escobar, Peter Vickerman, Maggie Kilbourne-Brook, Mercy Mvundura, Sinead Delany-Moretlwe, Fern Terris-Prestholt
BACKGROUND: The development of antiretroviral (ARV)-based prevention products has the potential to substantially change the HIV prevention landscape; yet, little is known about how appealing these products will be outside of clinical trials, as compared with the existing options. METHODS: We conducted a discrete choice experiment (DCE) to measure preferences for 5 new products among 4 important populations in the HIV response: adult men and women in the general population (aged 18 to 49 y), adolescent girls (aged 16 to 17 y), and self-identifying female sex workers (aged 18 to 49 y)...
September 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
Frank Xiaoqing Liu, Edward A Witt, Scot Ebbinghaus, Grace DiBonaventura Beyer, Reshma Shinde, Enrique Basurto, Richard W Joseph
PURPOSE: To examine and compare patient and oncologist preferences for advanced melanoma treatment attributes and to document their trade-offs for benefits with risks. MATERIALS AND METHODS: A discrete choice experiment (DCE) was conducted among advanced melanoma patients and oncologists. Qualitative pilot testing was used to inform the DCE design. A series of scenarios asked stakeholders to choose between two hypothetical medications, each with seven attributes: mode of administration (MoA), dosing schedule (DS), median duration of therapy (MDT), objective response rate (ORR), progression-free survival (PFS), overall survival (OS), and grade 3-4 adverse events (AEs)...
2017: Patient Preference and Adherence
Daniel A N Barbosa, Ricardo de Oliveira-Souza, Felipe Monte Santo, Ana Carolina de Oliveira Faria, Alessandra A Gorgulho, Antonio A F De Salles
The neurosurgical endeavor to treat psychiatric patients may have been part of human history since its beginning. The modern era of psychosurgery can be traced to the heroic attempts of Gottlieb Burckhardt and Egas Moniz to alleviate mental symptoms through the ablation of restricted areas of the frontal lobes in patients with disabling psychiatric illnesses. Thanks to the adaptation of the stereotactic frame to human patients, the ablation of large volumes of brain tissue has been practically abandoned in favor of controlled interventions with discrete targets...
September 2017: Neurosurgical Focus
Hassan Obeid, Hoseb Abkarian, Maya Abou-Zeid, Isam Kaysi
This paper presents the design, analysis and results of a driving simulator experiment conducted to study the interaction between drivers and pedestrians in a mixed-street environment. Ninety-six students of the American University of Beirut (AUB) participated in the experiment that took place in the Transportation and Infrastructure Laboratory of AUB. The study looked at the driver-pedestrian interaction from the driver's perspective, by quantifying the effects of different scenario variables on the driving behavior of the participants...
August 25, 2017: Accident; Analysis and Prevention
Carol Mansfield, Nina Thomas, David Gebben, Maria Lucas, A Brett Hauber
BACKGROUND: The growing number of treatments for relapsing multiple sclerosis (MS) provides opportunities to consider patient preferences in treatment decisions. METHODS: We designed a Web-based, discrete-choice experiment survey to analyze treatment preferences in patients with relapsing-remitting MS (RRMS). The survey presented hypothetical MS treatments defined by six attributes: risk of MS progression, time between relapses, risk of serious infection, treatment-related flu-like symptoms and gastrointestinal symptoms, and route and frequency of administration...
July 2017: International Journal of MS Care
Nancy J Devlin, Koonal K Shah, Yan Feng, Brendan Mulhern, Ben van Hout
A new version of the EQ-5D, the EQ-5D-5L, is available. The aim of this study is to produce a value set to support use of EQ-5D-5L data in decision-making. The study design followed an international research protocol. Randomly selected members of the English general public completed 10 time trade-off and 7 discrete choice experiment tasks in face-to-face interviews. A 20-parameter hybrid model was used to combine time trade-off and discrete choice experiment data to generate values for the 3,125 EQ-5D-5L health states...
August 22, 2017: Health Economics
Yan Feng, Nancy J Devlin, Koonal K Shah, Brendan Mulhern, Ben van Hout
Value sets for the EQ-5D-5L are required to facilitate its use in estimating quality-adjusted life years. An international protocol has been developed to guide the collection of stated preference data for this purpose and has been used to generate EQ-5D-5L valuation data for England. The aim of this paper is report the innovative methods used for modelling those data to obtain a value set. Nine hundred and ninety-six members of the English general public completed time trade-off (TTO) and discrete choice experiment (DCE) tasks...
August 18, 2017: Health Economics
Sabado Nicolau Girardi, Cristiana Leite Carvalho, Lucas Wan Der Maas, Jackson Freire Araujo, Alice Werneck Massote, Ana Cristina de Sousa van Stralen, Osmar Ambrósio de Souza
This article presents the results of a discrete choice experiment (DCE) conducted in 2012 with 277 final-year medical students from Minas Gerais State, Brazil. The experiment tested students' preferences concerning future work as physicians in primary health care, based on hypothetical job scenarios aimed at measuring the likelihood of placement in areas with a shortage of doctors. Application of DCE involved (i) a qualitative stage to define the attributes and their respective levels to comprise the job scenarios, (ii) construction and application of the instrument, and (iii) analysis with application of multinomial logit with conditional probability to estimate the weight of attributes and to construct scenarios for choice probability...
August 21, 2017: Cadernos de Saúde Pública
Xin Chen, Jeffrey M Beck, John M Pearson
Experiments that study neural encoding of stimuli at the level of individual neurons typically choose a small set of features present in the world-contrast and luminance for vision, pitch and intensity for sound-and assemble a stimulus set that systematically varies along these dimensions. Subsequent analysis of neural responses to these stimuli typically focuses on regression models, with experimenter-controlled features as predictors and spike counts or firing rates as responses. Unfortunately, this approach requires knowledge in advance about the relevant features coded by a given population of neurons...
August 2017: PLoS Computational Biology
Gicheol Jeong
AIMS: In June 2016, Korea permitted direct-to-consumer genetic testing (DTC-GT) on 42 genes. However, both the market and industry have not yet been fully activated. Considering the aforementioned context, this study provides important insights. METHODS: The Korean DTC-GT policy assessment is based on consumer preference analysis using a discrete choice experiment. In August 2016, a web-based survey was conducted to collect data from 1,200 respondents. RESULTS: The estimation results show that consumers prefer a DTC-GT product that is cheap, tests various items or genes, offers accurate test results, and guarantees the confidentiality of all information...
August 18, 2017: Public Health Genomics
Eric Keuffell, Wanda Jaskiewicz, Khampasong Theppanya, Kate Tulenko
BACKGROUND: The dearth of health workers in rural settings in Lao People's Democratic Republic (PDR) and other developing countries limits healthcare access and outcomes. In evaluating non-wage financial incentive packages as a potential policy option to attract health workers to rural settings, understanding the expected costs and effects of the various programs ex ante can assist policy-makers in selecting the optimal incentive package. METHODS: We use discrete choice experiments (DCEs), costing analyses and recent empirical results linking health worker density and health outcomes to estimate the future location decisions of physicians and determine the cost-effectiveness of 15 voluntary incentives packages for new physicians in Lao PDR...
October 29, 2016: International Journal of Health Policy and Management
Wen Jin, Hai Jiang, Yimin Liu, Erica Klampfl
Discrete choice experiments have been widely applied to elicit behavioral preferences in the literature. In many of these experiments, the alternatives are named alternatives, meaning that they are naturally associated with specific names. For example, in a mode choice study, the alternatives can be associated with names such as car, taxi, bus, and subway. A fundamental issue that arises in stated choice experiments is whether to treat the alternatives' names as labels (that is, labeled treatment), or as attributes (that is, unlabeled treatment) in the design as well as the presentation phases of the choice sets...
2017: PloS One
Bryce E Haac, Nathan N O'Hara, C Daniel Mullins, Deborah M Stein, Theodore T Manson, Herman Johal, Renan Castillo, Robert V O'Toole, Gerald P Slobogean
OBJECTIVE: Limited evidence for the optimal venous thromboembolism (VTE) prophylaxis regimen in orthopaedic trauma leads to variability in regimens. We sought to delineate patient preferences towards cost, complication profile, and administration route (oral tablet vs. subcutaneous injection). DESIGN: Discrete choice experiment (DCE). SETTING: Level 1 trauma center in Baltimore, USA. PARTICIPANTS: 232 adult trauma patients (mean age 47...
August 11, 2017: BMJ Open
Elisabeth Huynh, Joanna Coast, John Rose, Philip Kinghorn, Terry Flynn
End of life care may have elements of value that go beyond health. A generic measure of the benefits of end of life care could be helpful to decision makers. Such a measure, based on the capability approach, has recently been developed: the ICECAP Supportive Care Measure. This paper reports the first valuation exercise for that measure, with data from 6020 individuals collected from an on-line general population panel during June 2013. Individuals were asked to complete a stated choice experiment that combined best-worst scaling and a standard discrete choice experiment...
July 21, 2017: Social Science & Medicine
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