Objective: To develop valid and realistic manipulations for video-vignette research using expert opinion rounds, in preparation of an experimental study on clinicians' (un)reasonable argumentative... Show moreObjective: To develop valid and realistic manipulations for video-vignette research using expert opinion rounds, in preparation of an experimental study on clinicians' (un)reasonable argumentative support for treatment de-cisions in neonatal care. Methods: In three rounds, N = 37 participants (parents/clinicians/researchers) provided feedback on four video -vignette scripts and completed listing, ranking, and rating exercises to determine which (un)reasonable argu-ments clinicians may provide to support treatment decisions. Results: Round 1: participants deemed the scripts realistic. They judged that, on average, clinicians should provide two arguments for a treatment decision. They listed 13-20 reasonable arguments, depending on the script. Round 2: participants ranked the two most salient, reasonable arguments per script. Round 3: participants rated the most plausible, unreasonable arguments from a predefined list. These results guided the design of 12 experimental conditions. Conclusion: Expert opinion rounds are an effective method to develop video-vignettes that are theoretically sound and ecologically realistic and offer a powerful means to include stakeholders in experimental research design. Our study yielded some preliminary insights into what are considered prevalent (un)reasonable arguments for clinicians' treatment plans. Practice implications: We provide hands-on guidelines on involving stakeholders in the design of video-vignette experiments and the development of video-based health communication interventions - both for research and practice. Show less
Schuijt, H.J.; Smeeing, D.P.J.; Groenwold, R.H.H.; Velde, D. van der; Weaver, M.J. 2022
Introduction: Identification of high-risk hip fracture patients in an early stage is vital for guiding surgical management and shared decision making. To objective of this study was to perform an... Show moreIntroduction: Identification of high-risk hip fracture patients in an early stage is vital for guiding surgical management and shared decision making. To objective of this study was to perform an external international validation study of the U-HIP prediction model for in-hospital mortality in geriatric patients with a hip fracture undergoing surgery. Materials and methods: In this retrospective cohort study, data were used from The American College of Surgeons National Surgical Quality Improvement Program. Patients aged 70 years or above undergoing hip fracture surgery were included. The discrimination (c-statistic) and calibration of the model were investigated. Results: A total of 25,502 patients were included, of whom 618 (2.4%) died. The mean predicted probability of in-hospital mortality was 3.9% (range 0%-55%). The c-statistic of the model was 0.74 (95% CI 0.72-0.76), which was comparable to the c-statistic of 0.78 (95% CI 0.71-0.85) that was found in the development cohort. The calibration plot indicated that the model was slightly overfitted, with a calibrationin-the-large of 0.015 and a calibration slope of 0.780. Within the subgroup of patients aged between 70 and 85, however, the c-statistic was 0.78 (95% CI 0.75-0.81), with good calibration (calibration slope 0.934). Discussion and conclusion: The U-HIP model for in-hospital mortality in geriatric hip fractures was externally validated in a large international cohort, and showed a good discrimination and fair calibration. This model is freely available online and can be used to predict the risk of mortality, identify high-risk patients and aid clinical decision making. (C) 2021 Published by Elsevier Ltd. Show less
Bor, A.; Mazepus, H.; Bokemper, S.E.; DeScioli, P. 2021
Background To optimize the focus of future public information campaigns in The Netherlands promoting the uptake of vaccines among adults and children, we quantified the contribution of several... Show moreBackground To optimize the focus of future public information campaigns in The Netherlands promoting the uptake of vaccines among adults and children, we quantified the contribution of several attributes to the vaccination decision. Method We performed a discrete choice experiment (DCE) among Dutch adults including six attributes, i.e. vaccine effectiveness, vaccine-preventable burden of disease (specified in severity and frequency), accessibility of vaccination in terms of co-payment and prescription requirements, frequency of mild side-effects, population-level vaccination coverage and local vaccination coverage among family and friends. Participants answered the DCE from their own perspective ('oneself' group) or with regard to a vaccine decision for their youngest child ('child' group). The data was analysed by means of panel mixed logit models. Results We included 1547 adult participants (825 'oneself' and 722 'child'). Vaccine effectiveness was the most important attribute in the 'oneself' group, followed by burden of disease (relative importance (RI) 78%) and accessibility (RI 76%). In the 'child' group, burden of disease was most important, but tied closely with vaccine effectiveness (RI 97%). Of less importance was the risk of mild vaccine-related side-effects and both population and local vaccination coverage. Interestingly, participants were more willing to vaccinate when uptake among the population or family and friends was high, indicating that social influence and social norms plays a role. Conclusions Vaccine effectiveness and disease severity are key attributes in vaccination decision-making for adults making a decision for themselves and for parents who decide for their children. Hence, public information campaigns for both adult and child vaccination should primarily focus on these two attributes. In addition, reinforcing social norms may be considered. Show less
Willems, S.A.; Kranenburg, F.J.; Cessie, S. le; Marang-van de Mheen, P.J.; Kesecioglu, J.; Bom, J.G. van der; Arbous, M.S. 2020
Decisions regarding out-of-home placement of children are complicated and of high impact for children and parents. Previous studies show low agreement between professionals on these decisions, and... Show moreDecisions regarding out-of-home placement of children are complicated and of high impact for children and parents. Previous studies show low agreement between professionals on these decisions, and research regarding the influence of characteristics of decision-makers on the content of the decisions taken remains inconclusive. This study explored the relation between general and psychological characteristics of 144 professionals (child welfare professionals, children’s court judges, and master students) using vignettes and questionnaires. Professionals’ mind-set regarding the ability of parents to achieve change (parent-specific mind-set) and their attitude toward the harmfulness of out-of-home placements were related to their decision-making. General decision-maker factors (the professional’s background and work experience), the mind-set toward the ability of people in general to change (dispositional mind-set), and professionals’ attitude toward the effectiveness of out-of-home placements were not related to their decisions. This field of practice needs to reflect on the role of implicit beliefs in making placement decisions about children. Show less
Berkhout-Byrne, N.; Gaasbeek, A.; Mallat, M.J.K.; Rabelink, T.J.; Mooijaart, S.P.; Dekker, F.W.; Buren, M. van 2017
