Predicted preference conjoint analysis.
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ABSTRACT:
SUBMITTER: Radas S
PROVIDER: S-EPMC8389521 | biostudies-literature | 2021
REPOSITORIES: biostudies-literature
Publications
In this paper we propose a new method of eliciting market research information. Instead of asking respondents for their personal choices and preferences, we ask respondents to predict the choices of other respondents to the survey. Such predictions tap respondents' knowledge of peers, whether based on direct social contacts or on more general cultural information. The effectiveness of this approach has already been demonstrated in the context of political polling. Here we extend it to market res ...[more]
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Project description:BackgroundDespite increasing numbers of women with unilateral breast cancer undergoing CPM, quantitative evidence of all stakeholder preferences regarding CPM is lacking, particularly for healthy volunteers. Conjoint analysis, a marketing tool, can be used to quantify tradeoffs surrounding CPM.Study designThe objective of this study was to quantify preferences for aspects of contralateral prophylactic mastectomy (CPM) decision-making process among key stakeholders. Healthy volunteers, women with cancer (WwCa), surgical oncologists, and plastic surgeons were surveyed with the same conjoint simulation exercise. Respondents chose between either single (SM) or double (DM) mastectomy under varying recurrence and complication rates, surveillance, and symmetry conditions. Hierarchical Bayesian models calculated partworth utilities and importance scores.ResultsOverall, 1,244 respondents participated. The top 3 important factors for all stakeholders were surgical complication rates after DM, type of surgery (SM vs DM) independent of other variables, and 10-year future contralateral cancer risk after SM. HV and surgeons placed greatest importance on high rates of surgical complications after DM. WwCa preferred DM, regardless of complication risk or low rates of a 10-year future cancer episode after SM. Surgical oncologists strongly preferred SM and were more accepting of future cancer risk of 3% or 10% than other stakeholders. Symmetry and need for surveillance were least important factors for all stakeholders.ConclusionsThe threshold of acceptability for future cancer episodes and risk tolerance for complications varies by stakeholder, with a profound influence upon WwCA. Current findings suggest room for improved provider and patient alignment through behavioral techniques, such as framing, meanwhile highlighting changes in risk perception after a breast cancer diagnosis.
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Project description:IntroductionDespite the wide range of treatment options available for diabetic macular edema (DME), adherence to treatment remains a barrier. Therefore, this study used conjoint analysis to examine the factors that patients with DME prioritize when choosing a course of treatment and investigated differences in quality of life and levels of disease self-management in patients with or without experience of anti-vascular endothelial growth factor (VEGF) treatment.MethodsA cross-sectional study was conducted through an online survey in Japan between May 31, 2022, and June 30, 2022. Questionnaires were sent to 27,236 individuals registered in the diabetes panels, with experience of treatment for DME within the last 10 years. Conjoint analysis was employed to calculate the relative importance, i.e., degree of influence on patients' treatment choices, considering the trade-offs among five factors: cost per treatment, frequency of visits, anticipated post-treatment visual acuity, physician's explanation about disease and treatment, and frequency of treatment-related side effects.ResultsA total of 237 responses were used to assess the relative importance of cost per treatment, frequency of visits, anticipated post-treatment visual acuity, physician's explanation about the disease, treatment, and frequency of treatment-related side effects using conjoint analysis. The importance of each factor was anticipated post-treatment visual acuity at 30.0, frequency of treatment-related side effects at 25.5, treatment frequency at 17.7, cost per treatment at 16.5, and physician explanation about the disease and treatment at 10.4. The average EuroQoL 5 dimension 5 level index value in patients with and without anti-VEGF treatment experience was 0.785 and 0.825, respectively, with no major difference.ConclusionsAnticipated post-treatment visual acuity was identified as the most important factor in selecting a treatment regardless of the anti-vascular endothelial growth factor treatment experience demonstrating when patients with DME make treatment choices, anticipated post-treatment visual acuity is prioritized over treatment frequency and cost.
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Project description:Despite its relevance for health and education, the neurocognitive mechanism of real-life self-control is largely unknown. While recent research revealed a prominent role of the ventromedial prefrontal cortex in the computation of an integrative value signal, the contribution and relevance of other brain regions for real-life self-control remains unclear. To investigate neural correlates of decisions in line with long-term consequences and to assess the potential of brain decoding methods for the individual prediction of real-life self-control, we combined functional magnetic resonance imaging during preference decision making with ecological momentary assessment of daily self-control in a large community sample (N = 266). Decisions in line with long-term consequences were associated with increased activity in bilateral angular gyrus and precuneus, regions involved in different forms of perspective taking, such as imagining one's own future and the perspective of others. Applying multivariate pattern analysis to the same clusters revealed that individual patterns of activity predicted the probability of real-life self-control. Brain activations are discussed in relation to episodic future thinking and mentalizing as potential mechanisms mediating real-life self-control.
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Project description:BackgroundTofacitinib, an oral Janus kinase inhibitor approved for the treatment of rheumatoid arthritis (RA), provides patients with an alternative to subcutaneously or intravenously administered biologic disease-modifying antirheumatic drugs (DMARDs). Little is known about patient preference for novel RA treatments.ObjectiveTo investigate patient preferences for attributes associated with RA treatments.MethodsA choice-based conjoint survey was mailed to 1400 randomly selected commercially insured patients (aged 21-80 years) diagnosed with RA, who were continuously enrolled from May 1, 2012, through April 30, 2013, and had ≥2 medical claims for International Classification of Diseases, Ninth Revision, Clinical Modification diagnosis code 714.0 and no previous biologic DMARD use. Treatment attributes included route of administration; monthly out-of-pocket cost; frequency of administration; ability to reduce daily joint pain and swelling; likelihood of serious adverse events; improvement in the ability to perform daily tasks; and medication burden. Mean attribute importance scores were calculated after adjusting for patient demographics (eg, age, sex, years since diagnosis) using a hierarchical Bayes model. Patient preferences for each treatment attribute were ranked by the importance score. Part-worth utilities (ie, preference scores) were used to perform a conjoint market simulation.ResultsA total of 380 patients (response rate, 27.1%) returned the survey. Their mean age (± standard deviation) was 54.9 (± 9.3) years. Nonrespondents were 2 years younger (mean, 52.9 years; P = .002) but did not differ significantly from respondents in known clinical characteristics. After adjustment for demographic characteristics, mean patients' ranking of treatment attribute importance, in decreasing order, was route of administration, 34.1 (± 15.5); frequency of administration, 16.4 (± 6.8); serious adverse events, 12.0 (± 9.3); cost, 10.1 (± 6.2); medication burden, 9.8 (± 8.2); joint pain reduction, 8.9 (± 3.8); and daily tasks improvement, 8.8 (± 4.7). For the route of administration attribute, the part-worth utility was highest for the oral route. Conjoint simulation results showed that 56.4% of respondents would prefer an oral route of administration.ConclusionBased on this survey completed by 380 patients with RA, commercially insured patients with RA consider the route of administration to be the most important attribute of their RA treatment. In this study, the majority (56.4%) of patients preferred the oral route of administration over other routes. Understanding patient preferences may help to inform provider and payer decisions in treatment selection that may enhance patient adherence to therapy.
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Project description: Not available
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Project description:This study used a statistical technique, conjoint value analysis, to determine student perceptions related to the importance of predetermined reflective journaling attributes. An expert Delphi panel determined these attributes and integrated them into a survey which presented students with multiple journaling experiences from which they had to choose. After obtaining IRB approval, a convenience sample of 66 baccalaureate nursing students completed the survey. The relative importance of the attributes varied from a low of 16.75% (format) to a high of 23.58% (time). The model explained 77% of the variability of student journaling preferences (r(2) = 0.77). Students preferred shorter time, complete confidentiality, one-time complete feedback, semistructured format, and behavior recognition. Students with more experience had a much greater preference for a free-form format (P < .05) when compared to students with less journaling experience. Additionally, the results of English as a second language students were significantly different from the rest of the sample. In order to better serve them, educators must consider the relative importance of these attributes when developing journaling experiences for their students.
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Project description:The increase in virtual conferences during the COVID-19 pandemic provided unexpected advantages such as increased accessibility, while also creating concern about the effectiveness of online networking and career development. Given that a variety of conference attributes are impacted by changes in conference format, we sought to investigate how plastic surgeons prioritize key aspects of conference conduct.MethodsWe sent a survey based on conjoint analysis, a statistical method for evaluating consumer preferences, to active members of the American Society of Plastic Surgeons. Respondents were asked to choose between pairs of conference options, each with unique attributes. Their answers were used to calculate feature importance values and utility coefficients for the conference attributes. Subgroup analyses were conducted based on demographic factors.ResultsA total of 263 respondents completed the survey. Respondents were mostly White (181 individuals [68.8%]) and men (186 [70.7%]). Nearly half (122 [46.4%]) had been practicing 20 or more years. Conference attributes with the highest feature importance values (SDs) were cost of attendance (30.4% [14.2%]) and conference format (28.8% [14.2%]). Equity initiatives (14.5% [10.1%]), reimbursement for cost (11.1% [5.7%]), and opportunities for networking (9.5% [6.0%]) had intermediate feature importance values. Environmental impact had the lowest feature importance (5.7% [3.8%]).ConclusionsSurgeons' conference preferences depend highly on format and the presence of equity initiatives, both of which can be incorporated or modified in future conferences to ensure inclusive and successful events. Meanwhile, environmental impact is less important to surgeons, suggesting a pressing need to bring sustainability issues to their attention.
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