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Shaffer VA, Focella ES, Scherer LD, Zikmund-Fisher BJ. Debiasing affective forecasting errors with targeted, but not representative, experience narratives. PATIENT EDUCATION AND COUNSELING 2016; 99:1611-1619. [PMID: 27090559 DOI: 10.1016/j.pec.2016.04.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 03/28/2016] [Accepted: 04/08/2016] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To determine whether representative experience narratives (describing a range of possible experiences) or targeted experience narratives (targeting the direction of forecasting bias) can reduce affective forecasting errors, or errors in predictions of experiences. METHODS In Study 1, participants (N=366) were surveyed about their experiences with 10 common medical events. Those who had never experienced the event provided ratings of predicted discomfort and those who had experienced the event provided ratings of actual discomfort. Participants making predictions were randomly assigned to either the representative experience narrative condition or the control condition in which they made predictions without reading narratives. In Study 2, participants (N=196) were again surveyed about their experiences with these 10 medical events, but participants making predictions were randomly assigned to either the targeted experience narrative condition or the control condition. RESULTS Affective forecasting errors were observed in both studies. These forecasting errors were reduced with the use of targeted experience narratives (Study 2) but not representative experience narratives (Study 1). CONCLUSION Targeted, but not representative, narratives improved the accuracy of predicted discomfort. PRACTICE IMPLICATIONS Public collections of patient experiences should favor stories that target affective forecasting biases over stories representing the range of possible experiences.
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Fagerlin A, Zikmund-Fisher BJ, Ubel PA. Cure Me Even If It Kills Me: Preferences for Invasive Cancer Treatment. Med Decis Making 2016; 25:614-9. [PMID: 16282212 DOI: 10.1177/0272989x05282639] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Purpose . When making medical decisions, people often care not only about what happens but also about whether the outcome was a result of actions voluntarily taken or a result of inaction. This study assessed the proportion of people choosing nonoptimal treatments (treatments which reduced survival chances) when presented with hypothetical cancer scenarios which varied by outcome cause. Methods . A randomized survey experiment tested preferences for curing an existent cancer with 2 possible treatments (medication or surgery) and 2 effects of treatment (beneficial or harmful). Participants were 112 prospective jurors in the Philadelphia County Courthouse and 218 visitors to the Detroit-Wayne County Metropolitan Airport. Results . When treatment was beneficial, 27% of participants rejected medication, whereas only 10% rejected surgery with identical outcomes ( 2 = 5.87, P < 0.02). When treatment was harmful, participants offered surgery were significantly more inclined to take action (65% v. 38%, 2 = 11.40, P = 0.001), even though doing so reduced overall survival chances. Conclusions . Faced with hypothetical cancer diagnoses, many people say they would pursue treatment even if doing so would increase their chance of death. This tendency toward active treatment is notably stronger when the treatment offered is surgery instead of medication. Our study suggests that few people can imagine standing by and doing nothing after being diagnosed with cancer, and it should serve to remind clinicians that, for many patients, the best treatment alternative may not only depend on the medical outcomes they can expect to experience but also on whether those outcomes are achieved actively or passively.
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Fernandez DM, Larson JL, Zikmund-Fisher BJ. Associations between health literacy and preventive health behaviors among older adults: findings from the health and retirement study. BMC Public Health 2016; 16:596. [PMID: 27430477 PMCID: PMC4949886 DOI: 10.1186/s12889-016-3267-7] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 06/23/2016] [Indexed: 12/29/2022] Open
Abstract
Background While the association between inadequate health literacy and adverse health outcomes has been well documented, less is known about the impact of health literacy on health perceptions, such as perceptions of control over health, and preventive health behaviors. Methods We identified a subsample of participants (N = 707) from the Health and Retirement Study (HRS), a nationally representative sample of older adults, who participated in health literacy testing. Self-reported health literacy was measured with a literacy screening question, and objective health literacy with a summed score of items from the Test of Functional Health Literacy. We compared answers on these items to those related to participation in health behaviors such as cancer screening, exercise, and tobacco use, as well as self-referencing health beliefs. Results In logistic regression models adjusted for gender, education, race, and age, participants with adequate self-reported health literacy (compared to poorer levels of health literacy) had greater odds of participation in mammography within the last 2 years (Odds ratio [OR] = 2.215, p = 0.01) and participation in moderate exercise two or more times per week (OR = 1.512, p = 0.03). Participants with adequate objective health literacy had reduced odds of participation in monthly breast self-exams (OR = 0.369, p = 0.004) and reduced odds of current tobacco use (OR = 0.456, p = 0.03). In adjusted linear regression analyses, self-reported health literacy made a small but significant contribution to explaining perceived control of health (β 0.151, p = <0.001) and perceived social standing (β 0.112, p = 0.002). Conclusion In a subsample of older adult participants of the HRS, measures of health literacy were positively related to several health promoting behaviors and health-related beliefs and non-use of breast self-exams, a screening behavior of questionable benefit. These relationships varied however, between self-reported and objectively-measured health literacy. Further investigation into the specific mechanisms that lead higher literacy people to pursue health promoting actions appears clearly warranted.
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Freeman-Gibb LA, Janz NK, Katapodi MC, Zikmund-Fisher BJ, Northouse L. The relationship between illness representations, risk perception and fear of cancer recurrence in breast cancer survivors. Psychooncology 2016; 26:1270-1277. [PMID: 27146965 DOI: 10.1002/pon.4143] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 01/18/2016] [Accepted: 03/20/2016] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Fear of cancer recurrence, although distinct from distress continues to be under-evaluated, captured, or treated when standard distress scales are used to assess concerns of cancer survivors. We tested a model assessing the association of demographic and clinical factors, illness representations, and perceived risk with fear of cancer recurrence in breast cancer survivors. METHODS We recruited 117 breast cancer survivors at least one year after completing breast cancer treatment from Internet discussion boards for this cross-sectional, descriptive, correlational study. Participants completed a survey that assessed their level of fear of cancer recurrence as well as their illness representations, perceived risk of recurrence, and demographic and medical characteristics. RESULTS Our model explained 62% of the variance in fear of cancer recurrence. Emotional representations (β = .46, p < .01), symptom attribution (β = .21, p < .01), timeline (β = .23, p < .01), and consequences (β = .16, p < .03) were significantly related to fear of recurrence. By contrast, the majority of clinical and demographic variables were not significant contributors to fear of recurrence. CONCLUSIONS Upon completion of cancer treatment, survivors with more emotional representations of the experience and those who attribute unrelated symptoms to their breast cancer have a higher level of fear of recurrence. Evaluation of these factors during treatment may help mitigate fear of recurrence in the survivorship phase of the breast cancer trajectory. Copyright © 2016 John Wiley & Sons, Ltd.
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Zikmund-Fisher BJ, Janz NK, Hawley ST, Griffith KA, Sabolch A, Jagsi R. Communication of Recurrence Risk Estimates to Patients Diagnosed With Breast Cancer. JAMA Oncol 2016; 2:684-686. [DOI: 10.1001/jamaoncol.2015.6416] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Witteman HO, Fagerlin A, Exe N, Trottier ME, Zikmund-Fisher BJ. One-Sided Social Media Comments Influenced Opinions And Intentions About Home Birth: An Experimental Study. Health Aff (Millwood) 2016; 35:726-33. [DOI: 10.1377/hlthaff.2015.1382] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Focella ES, Zikmund-Fisher BJ, Shaffer VA. Could Physician Use of Realistic Previews Increase Treatment Adherence and Patient Satisfaction? Med Decis Making 2016; 36:683-5. [DOI: 10.1177/0272989x16634086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 01/29/2016] [Indexed: 11/16/2022]
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Caverly TJ, Hayward RA, Reamer E, Zikmund-Fisher BJ, Connochie D, Heisler M, Fagerlin A. Presentation of Benefits and Harms in US Cancer Screening and Prevention Guidelines: Systematic Review. J Natl Cancer Inst 2016; 108:djv436. [PMID: 26917630 DOI: 10.1093/jnci/djv436] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 12/22/2015] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Cancer prevention and screening guidelines are ideally suited to the task of providing high-quality benefit-harm information that informs clinical practice. We systematically examined how US guidelines present benefits and harms for recommended cancer prevention and screening interventions. METHODS We included cancer screening and prevention recommendations from: 1) the United States Preventive Services Task Force, 2) the American Cancer Society, 3) the American College of Physicians, 4) the National Comprehensive Cancer Network, and 5) other US guidelines within the National Guidelines Clearinghouse. Searches took place November 20, 2013, and January 1, 2014, and updates were reviewed through July 1, 2015. Two coders used an abstraction form to code information about benefits and harms presented anywhere within a guideline document, including appendices. The primary outcome was each recommendation's benefit-harm "comparability" rating, based on how benefits and harms were presented. Recommendations presenting absolute effects for both benefits and harms received a "comparable" rating. Other recommendations received an incomplete rating or an asymmetric rating based on prespecified criteria. RESULTS Fifty-five recommendations for using interventions to prevent or detect breast, prostate, colon, cervical, and lung cancer were identified among 32 guidelines. Thirty point nine percent (n = 17) received a comparable rating, 14.5% (n = 8) received an incomplete rating, and 54.5% (n = 30) received an asymmetric rating. CONCLUSIONS Sixty-nine percent of cancer prevention and screening recommendation statements either did not quantify benefits and harms or presented them in an asymmetric manner. Improved presentation of benefits and harms in guidelines would better ensure that clinicians and patients have access to the information required for making informed decisions.
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Caverly TJ, Fagerlin A, Zikmund-Fisher BJ, Kirsh S, Kullgren JT, Prenovost K, Kerr EA. Appropriate Prescribing for Patients With Diabetes at High Risk for Hypoglycemia: National Survey of Veterans Affairs Health Care Professionals. JAMA Intern Med 2015; 175:1994-6. [PMID: 26502113 DOI: 10.1001/jamainternmed.2015.5950] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Higuchi EC, Sheldon JP, Zikmund-Fisher BJ, Yashar BM. Non-invasive prenatal screening for trisomy 21: Consumers' perspectives. Am J Med Genet A 2015; 170A:375-385. [PMID: 26553705 DOI: 10.1002/ajmg.a.37460] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 10/22/2015] [Indexed: 11/05/2022]
Abstract
Non-invasive prenatal screening (NIPS) has the potential to dramatically increase the prenatal detection rate of Down syndrome because of improvements in safety and accuracy over existing tests. There is concern that NIPS could lead to more negative attitudes towards Down syndrome and less support for individuals with Down syndrome. To assess the impact of NIPS on support for prenatal testing, decision-making about testing, and beliefs or attitudes about Down syndrome, we performed an Internet-based experiment using adults (N = 1,789) recruited through Amazon Mechanical Turk. Participants were randomly assigned to read a mock news article about NIPS, a mock news article about amniocentesis, or no article. The content in the two articles varied only in their descriptions of the test characteristics. Participants then answered questions about their support for testing, hypothetical testing decision, and beliefs and attitudes about Down syndrome. Reading the mock NIPS news article predicted increased hypothetical test uptake. In addition, the NIPS article group also agreed more strongly that pregnant women, in general, should utilize prenatal testing. We also found that the more strongly participants supported prenatal testing for pregnant women, the less favorable their attitudes towards individuals with Down syndrome; providing some evidence that NIPS may indirectly result in more negative perceptions of individuals with this diagnosis.
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Scherer LD, de Vries M, Zikmund-Fisher BJ, Witteman HO, Fagerlin A. Trust in deliberation: The consequences of deliberative decision strategies for medical decisions. Health Psychol 2015; 34:1090-9. [DOI: 10.1037/hea0000203] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Witteman HO, Chipenda Dansokho S, Exe N, Dupuis A, Provencher T, Zikmund-Fisher BJ. Risk Communication, Values Clarification, and Vaccination Decisions. RISK ANALYSIS : AN OFFICIAL PUBLICATION OF THE SOCIETY FOR RISK ANALYSIS 2015; 35:1801-1819. [PMID: 25996456 DOI: 10.1111/risa.12418] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Many health-related decisions require choosing between two options, each with risks and benefits. When presented with such tradeoffs, people often make choices that fail to align with scientific evidence or with their own values. This study tested whether risk communication and values clarification methods could help parents and guardians make evidence-based, values-congruent decisions about children's influenza vaccinations. In 2013-2014 we conducted an online 2×2 factorial experiment in which a diverse sample of U.S. parents and guardians (n = 407) were randomly assigned to view either standard information about influenza vaccines or risk communication using absolute and incremental risk formats. Participants were then either presented or not presented with an interactive values clarification interface with constrained sliders and dynamic visual feedback. Participants randomized to the risk communication condition combined with the values clarification interface were more likely to indicate intentions to vaccinate (β = 2.10, t(399) = 2.63, p < 0.01). The effect was particularly notable among participants who had previously demonstrated less interest in having their children vaccinated against influenza (β = -2.14, t(399) = -2.06, p < 0.05). When assessing vaccination status reported by participants who agreed to participate in a follow-up study six months later (n = 116), vaccination intentions significantly predicted vaccination status (OR = 1.66, 95%CI (1.13, 2.44), p < 0.05) and rates of informed choice (OR = 1.51, 95%CI (1.07, 2.13), p < 0.012), although there were no direct effects of experimental factors on vaccination rates. Qualitative analysis suggested that logistical barriers impeded immunization rates. Risk communication and values clarification methods may contribute to increased vaccination intentions, which may, in turn, predict vaccination status if logistical barriers are also addressed.
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Voepel-Lewis T, Zikmund-Fisher BJ, Smith EL, Zyzanski S, Tait AR. Parents’ preferences strongly influence their decisions to withhold prescribed opioids when faced with analgesic trade-off dilemmas for children: A prospective observational study. Int J Nurs Stud 2015; 52:1343-53. [DOI: 10.1016/j.ijnurstu.2015.05.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 04/30/2015] [Accepted: 05/03/2015] [Indexed: 11/27/2022]
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Lillie SE, Tarini BA, Janz NK, Zikmund-Fisher BJ. Framing optional genetic testing in the context of mandatory newborn screening tests. BMC Med Inform Decis Mak 2015; 15:50. [PMID: 26123051 PMCID: PMC4485334 DOI: 10.1186/s12911-015-0173-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 06/12/2015] [Indexed: 02/04/2023] Open
Abstract
Background Parents are increasingly faced with decisions about optional newborn bloodspot screening (NBS) despite no consistent policy for communicating information about such testing. We examined whether framing optional NBS alongside mandatory NBS influenced intention to participate in optional NBS. Methods For this Internet-administered study, 2,991 adults read a hypothetical vignette in which optional NBS for Duchenne muscular dystrophy (DMD) was either presented by itself (in isolation), alongside a description including the total number of mandatory NBS tests (“bundled” mandatory context), or alongside a listing of each mandatory NBS test (“unbundled” mandatory context). We assessed associations with participants’ intended participation using ordered logistic regression models, and associations with attitudes towards optional DMD NBS and subjective norms using Analysis of Variance. Results Participants were more likely to choose optional DMD NBS if they also read information about mandatory NBS (either bundled or unbundled) versus when DMD NBS was presented in isolation. Participants who read about optional DMD NBS in isolation also reported such testing to be less important and that they would worry more about the results than those who also saw mandatory NBS information. Conclusions Future NBS programs should pay attention to the framing of optional testing communication, as it influences parental behavior. Predictors of NBS uptake will become increasingly important as NBS programs continue expanding. Electronic supplementary material The online version of this article (doi:10.1186/s12911-015-0173-3) contains supplementary material, which is available to authorized users.
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Schumacher KR, Stringer KA, Donohue JE, Yu S, Shaver A, Caruthers RL, Zikmund-Fisher BJ, Fifer C, Goldberg C, Russell MW. Fontan-associated protein-losing enteropathy and plastic bronchitis. J Pediatr 2015; 166:970-7. [PMID: 25661406 PMCID: PMC4564862 DOI: 10.1016/j.jpeds.2014.12.068] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 10/29/2014] [Accepted: 12/22/2014] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To characterize the medical history, disease progression, and treatment of current-era patients with the rare diseases Fontan-associated protein-losing enteropathy (PLE) and plastic bronchitis. STUDY DESIGN A novel survey that queried demographics, medical details, and treatment information was piloted and placed online via a Facebook portal, allowing social media to power the study. Participation regardless of PLE or plastic bronchitis diagnosis was allowed. Case control analyses compared patients with PLE and plastic bronchitis with uncomplicated control patients receiving the Fontan procedure. RESULTS The survey was completed by 671 subjects, including 76 with PLE, 46 with plastic bronchitis, and 7 with both. Median PLE diagnosis was 2.5 years post-Fontan. Hospitalization for PLE occurred in 71% with 41% hospitalized ≥ 3 times. Therapy varied significantly. Patients with PLE more commonly had hypoplastic left ventricle (62% vs 44% control; OR 2.81, 95% CI 1.43-5.53), chylothorax (66% vs 41%; OR 2.96, CI 1.65-5.31), and cardiothoracic surgery in addition to staged palliation (17% vs 5%; OR 4.27, CI 1.63-11.20). Median plastic bronchitis diagnosis was 2 years post-Fontan. Hospitalization for plastic bronchitis occurred in 91% with 61% hospitalized ≥ 3 times. Therapy was very diverse. Patients with plastic bronchitis more commonly had chylothorax at any surgery (72% vs 51%; OR 2.47, CI 1.20-5.08) and seasonal allergies (52% vs 36%; OR 1.98, CI 1.01-3.89). CONCLUSIONS Patient-specific factors are associated with diagnoses of PLE or plastic bronchitis. Treatment strategies are diverse without clear patterns. These results provide a foundation upon which to design future therapeutic studies and identify a clear need for forming consensus approaches to treatment.
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Saada A, Lieu TA, Morain SR, Zikmund-Fisher BJ, Wittenberg E. Parents' choices and rationales for alternative vaccination schedules: a qualitative study. Clin Pediatr (Phila) 2015; 54:236-43. [PMID: 25200366 DOI: 10.1177/0009922814548838] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND A growing number of parents adopt alternative vaccination schedules for their children. A better understanding of parents' rationales for these choices is needed to guide vaccine decision making. METHODS We conducted 24 semistructured telephone interviews with parents of 12- to 36-month-olds and analyzed data using an inductive approach. RESULTS We identified 5 alternative vaccination approaches: "Dr Sears" schedule, shot-limiting approach, selective delay or decline, visit-by-visit decisions, and refusal of all vaccines. Parents who adopted alternative approaches expressed a desire for more control of exposure to vaccine ingredients; vaccine safety, immune system burden, and perceived disease risk were articulated as concerns. CONCLUSIONS Parents who adopt alternative vaccination schedules can be classified in defined subgroups based on their decision-making approaches, and many describe considered reasons to support their actions. Communications that acknowledge and address those reasons may be better able to engage parents and ultimately enhance the process of decision making about vaccines.
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O'Kane M, Freedman D, Zikmund-Fisher BJ. Can patients use test results effectively if they have direct access? BMJ 2015; 350:h673. [PMID: 25673132 DOI: 10.1136/bmj.h673] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Christensen KD, Roberts JS, Zikmund-Fisher BJ, Kardia SL, McBride CM, Linnenbringer E, Green RC. Associations between self-referral and health behavior responses to genetic risk information. Genome Med 2015; 7:10. [PMID: 25642295 PMCID: PMC4311425 DOI: 10.1186/s13073-014-0124-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 12/11/2014] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Studies examining whether genetic risk information about common, complex diseases can motivate individuals to improve health behaviors and advance planning have shown mixed results. Examining the influence of different study recruitment strategies may help reconcile inconsistencies. METHODS Secondary analyses were conducted on data from the REVEAL study, a series of randomized clinical trials examining the impact of genetic susceptibility testing for Alzheimer's disease (AD). We tested whether self-referred participants (SRPs) were more likely than actively recruited participants (ARPs) to report health behavior and advance planning changes after AD risk and APOE genotype disclosure. RESULTS Of 795 participants with known recruitment status, 546 (69%) were self-referred and 249 (31%) had been actively recruited. SRPs were younger, less likely to identify as African American, had higher household incomes, and were more attentive to AD than ARPs (all P < 0.01). They also dropped out of the study before genetic risk disclosure less frequently (26% versus 41%, P < 0.001). Cohorts did not differ in their likelihood of reporting a change to at least one health behavior 6 weeks and 12 months after genetic risk disclosure, nor in intentions to change at least one behavior in the future. However, interaction effects were observed where ε4-positive SRPs were more likely than ε4-negative SRPs to report changes specifically to mental activities (38% vs 19%, p < 0.001) and diets (21% vs 12%, p = 0.016) six weeks post-disclosure, whereas differences between ε4-positive and ε4-negative ARPs were not evident for mental activities (15% vs 21%, p = 0.413) or diets (8% versus 16%, P = 0.190). Similarly, ε4-positive participants were more likely than ε4-negative participants to report intentions to change long-term care insurance among SRPs (20% vs 5%, p < 0.001), but not ARPs (5% versus 9%, P = 0.365). CONCLUSIONS Individuals who proactively seek AD genetic risk assessment are more likely to undergo testing and use results to inform behavior changes than those who respond to genetic testing offers. These results demonstrate how the behavioral impact of genetic risk information may vary according to the models by which services are provided, and suggest that how participants are recruited into translational genomics research can influence findings. TRIAL REGISTRATION ClinicalTrials.gov NCT00089882 and NCT00462917.
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Zikmund-Fisher BJ. Stories of MDM: from a conversation to a career of making less data more useful. Med Decis Making 2014; 35:NP1-3. [PMID: 25532825 DOI: 10.1177/0272989x14563576] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Scherer LD, Maynard A, Dolinoy DC, Fagerlin A, Zikmund-Fisher BJ. The psychology of 'regrettable substitutions': Examining consumer judgements of Bisphenol A and its alternatives. HEALTH RISK & SOCIETY 2014; 16:649-666. [PMID: 29386966 DOI: 10.1080/13698575.2014.969687] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Bisphenol A is a chemical used to make certain types of plastics and is found in numerous consumer products. Because scientific studies have raised concerns about Bisphenol A's potential impact on human health, it has been removed from some (but not all) products. What many consumers do not know, however, is that Bisphenol A is often replaced with other, less-studied chemicals whose health implications are virtually unknown. This type of situation is known as a potential 'regrettable substitution', because the substitute material might actually be worse than the material that it replaces. Regrettable substitutions are a common concern among policymakers, and they are a real-world manifestation of the tension that can exist between the desire to avoid risk (known possible consequences that might or might not occur) and ambiguity (second-order uncertainty), which is itself aversive. In this article we examine how people make such trade-offs using the example of Bisphenol A. Using data from Study 1, we show that people have inconsistent preferences toward these alternatives and that choice is largely determined by irrelevant contextual factors such as the order in which the alternatives are evaluated. Using data from Study 2 we further demonstrate that when people are informed of the presence of substitute chemicals, labeling the alternative product as 'free' of Bisphenol A causes them to be significantly more likely to choose the alternative despite its ambiguity. We discuss the relevance of these findings for extant psychological theories as well as their implications for risk, policy and health communication.
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Hamstra DA, Johnson SB, Daignault S, Zikmund-Fisher BJ, Taylor JMG, Larkin K, Wood A, Fagerlin A. The impact of numeracy on verbatim knowledge of the longitudinal risk for prostate cancer recurrence following radiation therapy. Med Decis Making 2014; 35:27-36. [PMID: 25277673 DOI: 10.1177/0272989x14551639] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE . Given the long natural history of prostate cancer, we assessed differing graphical formats for imparting knowledge about the longitudinal risks of prostate cancer recurrence with or without 'hormone' or 'androgen deprivation' therapy. METHODS . Male volunteers without a history of prostate cancer were randomized to 1 of 8 risk communication instruments that depicted the likelihood of prostate cancer returning or spreading over 1, 2, and 3 years. The tools differed in format (line, pie, bar, or pictograph) and whether the graph also included no numbers, 1 number (indicating the number of affected individuals), or 2 numbers (indicting both the number affected and the number unaffected). The main outcome variables evaluated were graphical preference and knowledge. RESULTS . A total of 420 men were recruited; respondents were least familiar and experienced with pictographs (P < 0.0001), and only 10% preferred this particular format. Overall accuracy ranged from 79% to 92%, and when assessed across all graphical subtypes, the addition of numerical information did not improve verbatim knowledge (P = 0.1). Self-reported numeracy was a strong predictor of accuracy of responses (odds ratio [OR] = 2.6, P = 0.008), and the impact of high numeracy varied across graphical type, having a greater impact on line (OR = 5.1; 95% confidence interval [CI] = 1.6-16; P = 0.04) and pie charts (OR = 7.1; 95% CI = 2.6-19; P =0.01), without an impact on pictographs (OR = 0.4; 95% CI = 0.1-1.7; P = 0.17) or bar charts (OR = 0.5; 95% CI = 0.1-1.8; P = 0.24). CONCLUSION . For longitudinal presentation of risk, baseline numeracy was strongly prognostic for outcome. However, the addition of numbers to risk graphs improved only the delivery of verbatim knowledge for subjects with lower numeracy. Although subjects reported the least familiarity with pictographs, they were one of the most effective means of transferring information regardless of numeracy.
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Rothberg MB, Scherer L, Kashef MA, Coylewright M, Ting HH, Hu B, Zikmund-Fisher BJ. The effect of information presentation on beliefs about the benefits of elective percutaneous coronary intervention. JAMA Intern Med 2014; 174:1623-9. [PMID: 25156687 DOI: 10.1001/jamainternmed.2014.3331] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE For stable angina, the benefits of percutaneous coronary intervention (PCI) are limited to symptom relief, but patients often believe that PCI prevents myocardial infarction (MI). Whether presenting accurate information about the benefits of PCI would dispel these beliefs remains unknown. We hypothesized that explanatory information would be more effective for influencing volunteers' beliefs. OBJECTIVE To assess the effect of explicit and explanatory information on participants' beliefs about PCI and their willingness to choose it. DESIGN, SETTING, AND PARTICIPANTS We conducted a randomized trial in 2012 among adults older than 50 years living in the general community. We recruited participants using the Internet. INTERVENTIONS Participants read 1 of 3 scenarios in which they experienced class I angina and were referred to a cardiologist. The cardiologist provided no information about the effects of PCI on MI risk, a specific statement that PCI does not reduce MI risk, or an explanation of why PCI does not reduce MI risk. MAIN OUTCOMES AND MEASURES Participants' beliefs about the benefit of PCI and choice of PCI and medication. RESULTS A total of 1257 participants (90.0%) completed the survey; 54.5% chose PCI. Compared with those receiving explicit and explanatory information, those receiving no information were most likely to believe that PCI prevents MI (71.0% vs 38.7% vs 30.6%, respectively; P < .001), most likely to choose PCI (69.4% vs 48.7% vs 45.7%, respectively; P < .001), and least likely to agree to medication therapy (83.1% vs 87.4% vs 92.3%, respectively; P < .001). Across the entire sample, the decision to have PCI was strongly correlated with the belief that PCI would prevent MI (odds ratio, 5.82 [95% CI, 4.13-8.26]) and that the participant would feel less worried (odds ratio, 5.36 [95% CI, 3.87-7.45]), but was not associated with how much participants were limited by symptoms. CONCLUSIONS AND RELEVANCE In the setting of mild, stable angina, most people assume PCI prevents MI and are likely to choose it. Explicit information can partially overcome that bias and influence decision making. Explanatory information was the most effective intervention in overcoming this bias.
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Korfage IJ, Fuhrel-Forbis A, Ubel PA, Zikmund-Fisher BJ, Greene SM, McClure JB, Smith DM, Alford SH, Fagerlin A. Informed choice about breast cancer prevention: randomized controlled trial of an online decision aid intervention. Breast Cancer Res 2014; 15:R74. [PMID: 24004815 PMCID: PMC3978729 DOI: 10.1186/bcr3468] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 05/08/2013] [Accepted: 09/03/2013] [Indexed: 11/26/2022] Open
Abstract
Introduction Tamoxifen and raloxifene are chemopreventive drugs that can reduce women's relative risk of primary breast cancer by 50%; however, most women eligible for these drugs have chosen not to take them. The reasons for low uptake may be related to women's knowledge or attitudes towards the drugs. We aimed to examine the impact of an online breast cancer chemoprevention decision aid (DA) on informed intentions and decisions of women at high risk of breast cancer. Methods We conducted a randomized clinical trial, assessing the effect of a DA about breast cancer chemoprevention on informed choices about chemoprevention. Women (n = 585), 46- to 74-years old old, completed online baseline, post-test, and three-month follow-up questionnaires. Participants were randomly assigned to either an intervention group, a standard control group that answered questions about chemoprevention at baseline, or a three-month control group that did not answer questions about chemoprevention at baseline. The main outcome measures were whether women's intentions and decisions regarding chemoprevention drugs were informed, and whether women who viewed the DA were more likely to make informed decisions than women who did not view the DA, using a dichotomous composite variable 'informed choice' (yes/no) to classify informed decisions as those reflecting sufficient knowledge and concordance between a woman's decision and relevant attitudes. Results Analyses showed that more intervention than standard control participants (52.7% versus 5.9%) made informed decisions at post-test, P <0.001. At the three-month follow-up, differences in rates of informed choice between intervention (16.9%) and both control groups (11.8% and 8.0%) were statistically non-significant, P = 0.067. Conclusions The DA increased informed decision making about breast cancer chemoprevention, although the impact on knowledge diminished over time. This study was not designed to determine how much knowledge decision makers must retain over time. Examining informed decisions increases understanding of the impact of DAs. A standard for defining and measuring sufficient knowledge for informed decisions is needed. Trial registration ClinicalTrials.gov: NCT00967824
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Zikmund-Fisher BJ, Exe NL, Witteman HO. Numeracy and literacy independently predict patients' ability to identify out-of-range test results. J Med Internet Res 2014; 16:e187. [PMID: 25135688 PMCID: PMC4137189 DOI: 10.2196/jmir.3241] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Revised: 06/07/2014] [Accepted: 07/10/2014] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Increasing numbers of patients have direct access to laboratory test results outside of clinical consultations. This offers increased opportunities for both self-management of chronic conditions and advance preparation for clinic visits if patients are able to identify test results that are outside the reference ranges. OBJECTIVE Our objective was to assess whether adults can identify laboratory blood test values outside reference ranges when presented in a format similar to some current patient portals implemented within electronic health record (EHR) systems. METHODS In an Internet-administered survey, adults aged 40-70 years, approximately half with diabetes, were asked to imagine that they had type 2 diabetes. They were shown laboratory test results displayed in a standard tabular format. We randomized hemoglobin A1c values to be slightly (7.1%) or moderately (8.4%) outside the reference range and randomized other test results to be within or outside their reference ranges (ie, multiple deviations). We assessed (1) whether respondents identified the hemoglobin A1c level as outside the reference range, (2) how respondents rated glycemic control, and (3) whether they would call their doctor. We also measured numeracy and health literacy. RESULTS Among the 1817 adult participants, viewing test results with multiple deviations increased the probability of identifying hemoglobin A1c values as outside the reference range (participants with diabetes: OR 1.47, 95% CI 1.12-1.92, P=.005; participants without diabetes: OR 1.50, 95% CI 1.13-2.00, P=.005). Both numeracy and health literacy were significant predictors of correctly identifying out-of-range values. For participants with diabetes, numeracy OR 1.32 per unit on a 1-6 scale (95% CI 1.15-1.51, P<.001) and literacy OR 1.59 per unit of a 1-5 scale (95% CI 1.35-1.87, P<.001); for participants without diabetes, numeracy OR 1.36 per unit (95% CI 1.17-1.58, P<.001) and literacy OR 1.33 per unit (95% CI 1.12-1.58, P=.001). Predicted probabilities suggested 77% of higher numeracy and health literacy participants, but only 38% of lower numeracy and literacy participants, could correctly identify the hemoglobin A1c levels as outside the reference range. Correct identification reduced perceived blood glucose control (mean difference 1.68-1.71 points on a 0-10 scale, P<.001). For participants with diabetes, increased health literacy reduced the likelihood of calling one's doctor when hemoglobin A1c=7.1% (OR 0.66 per unit, 95% CI 0.52-0.82, P<.001) and increased numeracy increased intention to call when hemoglobin A1c=8.4% (OR 1.36 per unit, 95% CI 1.10-1.69, P=.005). CONCLUSIONS Limited health literacy and numeracy skills are significant barriers to basic use of laboratory test result data as currently presented in some EHR portals. Regarding contacting their doctor, less numerate and literate participants with diabetes appear insensitive to the hemoglobin A1c level shown, whereas highly numerate and literate participants with diabetes appear very sensitive. Alternate approaches appear necessary to make test results more meaningful.
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Janz NK, Leinberger RL, Zikmund-Fisher BJ, Hawley ST, Griffith K, Jagsi R. Provider perspectives on presenting risk information and managing worry about recurrence among breast cancer survivors. Psychooncology 2014; 24:592-600. [PMID: 25052221 DOI: 10.1002/pon.3625] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 06/25/2014] [Accepted: 06/30/2014] [Indexed: 01/03/2023]
Abstract
BACKGROUND Although worry about recurrence is a persistent concern among breast cancer survivors, little is known about physicians' confidence about presenting recurrence risk information, identifying women with considerable worry, and helping women manage worry. METHODS Between January and June 2012, we surveyed 750 surgeons and 750 medical oncologists randomly sampled from the American Medical Association Physician Masterfile. We tested differences between surgeons and medical oncologists on confidence of presenting risk, identifying and managing worry using chi-square statistic and Student's t-tests and developed multiple variable logistic regression models to explain odds regarding confidence and use of different strategies for managing worry. RESULTS The analytic sample included 403 surgeons and 363 medical oncologists (n = 766; response rate = 60%). Compared with surgeons, medical oncologists were significantly more likely to report confidence in: presenting risk information (87.5% vs 73.2%), identifying women who are worried (74.1% vs 63.9%), and managing worry (66.9% vs 52.4%). Confidence in managing worry was associated with more regular inquiry about worry (p = 0.009). Models of the likelihood of using different management strategies varied by provider type (e.g., surgeons more likely than medical oncologists to recommend support group or online resources, oncologists more likely to refer to psychologist or use medications, all p < 0.05). CONCLUSION Cancer providers, particularly surgeons, may benefit from educational training to raise confidence in identifying women with high levels of worry and managing women with considerable worry. Communication between specialties and primary care physicians on efforts to manage worry is necessary for coordinated, quality care for women with breast cancer.
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