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Medical Decision Making: An International Journal of the Society for Medical Decision Making

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https://www.readbyqxmd.com/read/28528557/-naming-and-framing-the-impact-of-labeling-on-health-state-values-for-multiple-sclerosis
#1
Colin Green, Elizabeth Goodwin, Annie Hawton
INTRODUCTION: Health state valuation is a key input in many economic evaluations that inform resource allocation across competing healthcare interventions. Empirical evidence has shown that, in preference elicitation surveys, respondents may value a health state differently if they are aware of the condition causing it ('labeling effects'). This study investigates the impact of including a multiple sclerosis (MS) label for valuation of MS health states. METHODS: Health state values for MS were elicited using two internet-based surveys in representative samples of the UK population ( n = 1702; n = 1788)...
May 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28525725/a-comparison-of-the-validity-and-responsiveness-of-the-eq-5d-5l-and-sf-6d-for-measuring-health-spillovers-a-study-of-the-family-impact-of-meningitis
#2
Arjun Bhadhuri, Sue Jowett, Kate Jolly, Hareth Al-Janabi
BACKGROUND: The "health spillover" of patient illness on family members is important to capture in economic evaluation. This study compares the construct validity and responsiveness of 2 widely used health-related quality-of-life instruments, the EQ-5D-5L and SF-6D, in capturing health spillover effects for family members with and without an informal care role (carers and noncarers). METHODS: Construct validity and responsiveness were assessed using data from a 2012 UK survey of the family impact of meningitis-related sequelae...
May 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28525723/effectiveness-of-a-decision-aid-in-potentially-vulnerable-patients-a-secondary-analysis-of-the-chest-pain-choice-multicenter-randomized-trial
#3
Kristin L Rising, Judd E Hollander, Jason T Schaffer, Jeffrey A Kline, Carlos A Torres, Deborah B Diercks, Russell Jones, Kelly P Owen, Zachary F Meisel, Michel Demers, Annie Leblanc, Nilay D Shah, Jonathan Inselman, Jeph Herrin, Victor M Montori, Erik P Hess
BACKGROUND: We test the hypotheses that use of the Chest Pain Choice (CPC) decision aid (DA) would be similarly effective in potentially vulnerable subgroups but increase knowledge more in patients with higher education and trust in physicians more in patients from racial minority groups. METHODS: This was a secondary analysis of a multicenter randomized trial in adults with chest pain potentially due to acute coronary syndrome. The trial compared an intervention group engaged in shared decision making (SDM) using CPC to a control group receiving usual care (UC)...
May 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28490271/validation-of-a-cardiovascular-disease-policy-micro-simulation-model-using-both-survival-and-receiver-operating-characteristic-curves
#4
Ankur Pandya, Stephen Sy, Sylvia Cho, Sartaj Alam, Milton C Weinstein, Thomas A Gaziano
BACKGROUND: Despite some advances, cardiovascular disease (CVD) remains the leading cause of death and healthcare costs in the United States. We therefore developed a comprehensive CVD policy simulation model that identifies cost-effective approaches for reducing CVD burden. This paper aims to: 1) describe our model in detail; and 2) perform model validation analyses. METHODS: The model simulates 1,000,000 adults (ages 35 to 80 years) using a variety of CVD-related epidemiological data, including previously calibrated Framingham-based risk scores for coronary heart disease and stroke...
May 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28490230/acceptability-of-in-utero-hematopoietic-cell-transplantation-for-sickle-cell-disease
#5
Ryan M Antiel, Scott D Halpern, Evelyn M Stevens, Jesse D Vrecenak, Chavis A Patterson, Trudy Tchume-Johnson, Kim Smith-Whitley, William H Peranteau, Alan W Flake, Lamia P Barakat
BACKGROUND: In utero hematopoietic cell transplantation (IUHCT) has curative potential for sickle cell disease (SCD) but carries a risk of fetal demise. METHODS: We assessed the conditions under which parents of children with SCD and young adults with SCD would consider IUHCT in a future pregnancy, given a 5% fixed risk of fetal demise. Participants were randomized to consider a hypothetical cure rate (20%, 40%, or 70%). Subsequently, cure rate was either increased or decreased depending on the previous answer to reveal the lowest acceptable rate...
May 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28490227/utilization-of-continuous-spinners-to-communicate-risk
#6
Rachel F Eyler, Sara Cordes, Benjamin R Szymanski, Liana Fraenkel
BACKGROUND: As patients become more involved in their medical care, they must consider the specific probabilities of both positive and negative outcomes associated with different treatments. Patients who are low in numeracy may be at a disadvantage when making these decisions. This study examined the use of a "spinner" to present probabilistic information compared to a numerical format and icon array. DESIGN: Subjects ( n = 151) were asked to imagine they suffered from chronic back pain...
May 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28474962/effects-of-anti-versus-pro-vaccine-narratives-on-responses-by-recipients-varying-in-numeracy-a-cross-sectional-survey-based-experiment
#7
Wändi Bruine de Bruin, Annika Wallin, Andrew M Parker, JoNell Strough, Janel Hanmer
BACKGROUND: To inform their health decisions, patients may seek narratives describing other patients' evaluations of their treatment experiences. Narratives can provide anti-treatment or pro-treatment evaluative meaning that low-numerate patients may especially struggle to derive from statistical information. Here, we examined whether anti-vaccine (v. pro-vaccine) narratives had relatively stronger effects on the perceived informativeness and judged vaccination probabilities reported among recipients with lower (v...
April 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28453945/an-approach-to-reconciling-competing-ethical-principles-in-aggregating-heterogeneous-health-preferences
#8
Barry Dewitt, Alexander Davis, Baruch Fischhoff, Janel Hanmer
BACKGROUND: Health-related quality of life (HRQL) scores are used extensively to quantify the effectiveness of medical interventions. Societal preference-based HRQL scores aim to produce societal valuations of health by aggregating valuations from individuals in the general population, where each aggregation procedure embodies different ethical principles, as explained in social choice theory. METHODS: Using the Health Utilities Index as an exemplar, we evaluate societal preference-based HRQL measures in the social choice theory framework...
April 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28441507/new-metrics-for-economic-evaluation-in-the-presence-of-heterogeneity-focusing-on-evaluating-policy-alternatives-rather-than-treatment-alternatives
#9
David D Kim, Anirban Basu
BACKGROUND: Cost-effectiveness analysis (CEA) methods fail to acknowledge that where cost-effectiveness differs across subgroups, there may be differential adoption of technology. Also, current CEA methods are not amenable to incorporating the impact of policy alternatives that potentially influence the adoption behavior. Unless CEA methods are extended to allow for a comparison of policies rather than simply treatments, their usefulness to decision makers may be limited. METHODS: We conceptualize new metrics, which estimate the realized value of technology from policy alternatives, through introducing subgroup-specific adoption parameters into existing metrics, incremental cost-effectiveness ratios (ICERs) and Incremental Net Monetary Benefits (NMBs)...
April 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28441098/how-robust-are-value-judgments-of-health-inequality-aversion-testing-for-framing-and-cognitive-effects
#10
Shehzad Ali, Aki Tsuchiya, Miqdad Asaria, Richard Cookson
BACKGROUND: Empirical studies have found that members of the public are inequality averse and value health gains for disadvantaged groups with poor health many times more highly than gains for better off groups. However, these studies typically use abstract scenarios that involve unrealistically large reductions in health inequality and face-to-face survey administration. It is not known how robust these findings are to more realistic scenarios or anonymous online survey administration...
April 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28423982/from-data-to-improved-decisions-operations-research-in-healthcare-delivery
#11
Muge Capan, Anahita Khojandi, Brian T Denton, Kimberly D Williams, Turgay Ayer, Jagpreet Chhatwal, Murat Kurt, Jennifer Mason Lobo, Mark S Roberts, Greg Zaric, Shengfan Zhang, J Sanford Schwartz
BACKGROUND: The Operations Research Interest Group (ORIG) within the Society of Medical Decision Making (SMDM) is a multidisciplinary interest group of professionals that specializes in taking an analytical approach to medical decision making and healthcare delivery. ORIG is interested in leveraging mathematical methods associated with the field of Operations Research (OR) to obtain data-driven solutions to complex healthcare problems and encourage collaborations across disciplines. This paper introduces OR for the non-expert and draws attention to opportunities where OR can be utilized to facilitate solutions to healthcare problems...
April 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28410564/a-review-of-methods-for-analysis-of-the-expected-value-of-information
#12
Anna Heath, Ioanna Manolopoulou, Gianluca Baio
In recent years, value-of-information analysis has become more widespread in health economic evaluations, specifically as a tool to guide further research and perform probabilistic sensitivity analysis. This is partly due to methodological advancements allowing for the fast computation of a typical summary known as the expected value of partial perfect information (EVPPI). A recent review discussed some approximation methods for calculating the EVPPI, but as the research has been active over the intervening years, that review does not discuss some key estimation methods...
April 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28399375/understanding-the-value-of-individualized-information-the-impact-of-poor-calibration-or-discrimination-in-outcome-prediction-models
#13
Natalia Olchanski, Joshua T Cohen, Peter J Neumann, John B Wong, David Kent
BACKGROUND: Risk prediction models allow for the incorporation of individualized risk and clinical effectiveness information to identify patients for whom therapy is most appropriate and cost-effective. This approach has the potential to identify inefficient (or harmful) care in subgroups at different risks, even when the overall results appear favorable. Here, we explore the value of personalized risk information and the factors that influence it. METHODS: Using an expected value of individualized care (EVIC) framework, which monetizes the value of customizing care, we developed a general approach to calculate individualized incremental cost effectiveness ratios (ICERs) as a function of individual outcome risk...
April 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28384413/comparative-effectiveness-of-tacrolimus-based-steroid-sparing-versus-steroid-maintenance-regimens-in-kidney-transplantation-results-from-discrete-event-simulation
#14
Vibha C A Desai, Yann Ferrand, Teresa M Cavanaugh, Christina M L Kelton, J Jaime Caro, Jens Goebel, Pamela C Heaton
BACKGROUND: Corticosteroids used as immunosuppressants to prevent acute rejection (AR) and graft loss (GL) following kidney transplantation are associated with serious cardiovascular and other adverse events. Evidence from short-term randomized controlled trials suggests that many patients on a tacrolimus-based immunosuppressant regimen can withdraw from steroids without increased AR or GL risk. OBJECTIVES: To measure the long-term tradeoff between GL and adverse events for a heterogeneous-risk population and determine the optimal timing of steroid withdrawal...
April 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28380316/choice-blindness-and-health-state-choices-among-adolescents-and-adults
#15
Ernest H Law, Annika L Pickard, Anika Kaczynski, A Simon Pickard
OBJECTIVE: To assess the feasibility and validity of using a discrete choice experiment format to elicit health preferences in adolescents by comparing illogical choices and choice-blindness rates between adults and adolescents; and to explore the relationship between personality traits and health-state choices. METHODS: A convenience sample of adults and adolescents (12 to 17 y old) were recruited from around Chicago, USA. A personality inventory was administered, followed by pairwise comparisons of 6 health-state scenarios which asked each candidate to select their preferred choice...
April 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28441087/using-the-payoff-time-in-decision-analytic-models-a-case-study-for-using-statins-in-primary-prevention
#16
Alexander Thompson, Bruce Guthrie, Katherine Payne
BACKGROUND: The payoff time represents an estimate of when the benefits of an intervention outweigh the costs. It is particularly useful for benefit-harm decision making for interventions that have deferred benefits but upfront harms. The aim of this study was to expand the application of the payoff time and provide an example of its use within a decision-analytic model. METHODS: Three clinically relevant patient vignettes based on varying levels of estimated 10-year cardiovascular risk (10%, 15%, 20%) were developed...
March 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28398836/providing-quantitative-information-and-a-nudge-to-undergo-stool-testing-in-a-colorectal-cancer-screening-decision-aid
#17
Peter H Schwartz, Susan M Perkins, Karen K Schmidt, Paul F Muriello, Sandra Althouse, Susan M Rawl
BACKGROUND: Guidelines recommend that patient decision aids should provide quantitative information about probabilities of potential outcomes, but the impact of this information is unknown. Behavioral economics suggests that patients confused by quantitative information could benefit from a "nudge" towards one option. We conducted a pilot randomized trial to estimate the effect sizes of presenting quantitative information and a nudge. METHODS: Primary care patients (n = 213) eligible for colorectal cancer screening viewed basic screening information and were randomized to view (a) quantitative information (quantitative module), (b) a nudge towards stool testing with the fecal immunochemical test (FIT) (nudge module), (c) neither a nor b, or (d) both a and b...
March 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28379779/a-procedure-for-deriving-formulas-to-convert-transition-rates-to-probabilities-for-multi-state-markov-models
#18
Edmund Jones, David Epstein, Leticia García-Mochón
For health-economic analyses that use multi-state Markov models, it is often necessary to convert from transition rates to transition probabilities, and for probabilistic sensitivity analysis and other purposes it is useful to have explicit algebraic formulas for these conversions, to avoid having to resort to numerical methods. However, if there are four or more states then the formulas can be extremely complicated. These calculations can be made using packages such as R, but many analysts and other stakeholders still prefer to use spreadsheets for these decision models...
March 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28363265/two-stage-biomarker-protocols-for-improving-the-precision-of-early-detection-of-prostate-cancer
#19
Christine L Barnett, Scott A Tomlins, Daniel J Underwood, John T Wei, Todd M Morgan, James E Montie, Brian T Denton
BACKGROUND: New cancer biomarkers are being discovered at a rapid pace; however, these tests vary in their predictive performance characteristics, and it is unclear how best to use them. METHODS: We investigated 2-stage biomarker-based screening strategies in the context of prostate cancer using a partially observable Markov model to simulate patients' progression through prostate cancer states to mortality from prostate cancer or other causes. Patients were screened every 2 years from ages 55 to 69...
March 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28363033/using-an-internet-based-breast-cancer-risk-assessment-tool-to-improve-social-cognitive-precursors-of-physical-activity
#20
Stephanie L Fowler, William M P Klein, Linda Ball, Jaclyn McGuire, Graham A Colditz, Erika A Waters
BACKGROUND: Internet-based cancer risk assessment tools might serve as a strategy for translating epidemiological risk prediction research into public health practice. Understanding how such tools affect key social-cognitive precursors of behavior change is crucial for leveraging their potential into effective interventions. PURPOSE: To test the effects of a publicly available, Internet-based, breast cancer risk assessment tool on social-cognitive precursors of physical activity...
March 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
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