Allen D. Andrade

Avatar-Mediated Training in the Delivery of Bad News in a Virtual World

BACKGROUND Delivering bad news to patients is an essential communication skill for physicians. Educators commonly use standardized patient (SP) encounters to train physicians in the delivery of bad news. It is expensive to use actors, for logistical reasons such as travel and scheduling, and there are limits to the characters and conditions an actor can portray in teaching encounters. Thus we studied the feasibility of creating SP avatars in a virtual world for the task of training medical trainees to deliver bad news. The SP avatars are easily customized for different scenarios and amenable to distance learning. METHODS We recruited 10 medical trainees to interact with a standardized female avatar in a three-dimensional simulated clinic, where the trainee was to inform the avatar of her newly diagnosed breast cancer. The trainee evaluated his or her self-efficacy in delivering bad news via an affective competency score (ACS) before and after the encounter. Two palliative care specialists evaluated each trainees performance using the Bad News Assessment Schedule and the performance ACS. RESULTS The self-efficacy ACS scores of the trainees improved overall: before, 20 ± 4, versus after, 24 ± 3, p = 0.001 (maximum score = 30). All participants considered the experience positive and commended the novel approach, although noting that the avatars were not able to portray body language cues. CONCLUSION Participants viewed the avatar-mediated training as an excellent approach for learning how to deliver bad news but believed it could not substitute for real patient interactions. However, participant self-efficacy improved, which suggests that avatar-mediated training in a virtual world is a viable educational approach for skill training in delivering bad news.

Health Literacy, Numeracy, and Graphical Literacy Among Veterans in Primary Care and Their Effect on Shared Decision Making and Trust in Physicians

Studies reveal high levels of inadequate health literacy and numeracy in African Americans and older veterans. The authors aimed to investigate the distribution of health literacy, numeracy, and graph literacy in these populations. They conducted a cross-sectional survey of veterans receiving outpatient care and measured health literacy, numeracy, graph literacy, shared decision making, and trust in physicians. In addition, the authors compared subgroups of veterans using analyses of covariance. Participants were 502 veterans (22–82 years). Low, marginal, and adequate health literacy were found in, respectively, 29%, 26%, and 45% of the veterans. The authors found a significant main effect of race qualified by an age and race interaction. Inadequate health literacy was more common in African Americans than in Whites. Younger African Americans had lower health literacy (p <.001), graph literacy (p <.001), and numeracy (p <.001) than did Whites, even after the authors adjusted for covariates. Older and younger participants did not differ in health literacy, objective numeracy, or graph literacy after adjustment. The authors found no health literacy or age-related differences regarding preferences for shared decision making. African Americans expressed dissatisfaction with their current role in decision making (p =.03). Older participants trusted their physicians more than younger participants (p =.01). In conclusion, African Americans may be at a disadvantage when reviewing patient education materials, potentially affecting health care outcomes.

Is Patients’ Numeracy Related to Physical and Mental Health?

Objective. There is compelling evidence showing that health literacy influences health outcomes. However, there is a dearth of research investigating this issue in the vast literature on numeracy—the ability to accurately interpret numerical information about risk, a skill that is only moderately correlated with health literacy. In a cross-sectional study, we investigated whether objective and subjective numeracy is related to objective and subjective health outcomes. Objective (subjective) numeracy is actual (self-reported) numerical competence. Objective outcomes include prevalence of comorbidity and prescribed medications. Subjective outcomes include perceptions of physical and mental health. Methods. A convenience sample of 502 male individuals receiving outpatient care at a Veterans Affairs Medical Center reported their demographics and answered a survey measuring objective and subjective numeracy, trust in physicians, satisfaction with role in medical decision making, perceptions of physical and mental health, and risky habits. We computed patients’ body mass index (BMI) and their age-adjusted Charlson index—an extensively studied comorbidity index for predicting mortality in clinical research. We retrieved number of prescribed medications from medical records. Results. Compared with patients who had high objective numeracy, patients with low objective numeracy showed higher prevalence of comorbidities and took more prescribed medications. Compared with patients who had high subjective numeracy, patients with low subjective numeracy had more negative perceptions of their physical and mental health. These conclusions held after controlling for the effect of demographics, risky habits, BMI, trust in physicians, and satisfaction with role in decision making, suggesting that numeracy has a unique, significant contribution to health outcomes beyond the effect of these factors. Conclusions. Our research documents for the first time that self-reported numeracy is related to perceptions of health, whereas objective numeracy is related to actual health, laying the groundwork for future research on the effect of numeracy on health outcomes.

Development and Pilot Testing of a Self-management Internet-based Program for Older Adults with Overactive Bladder

OBJECTIVES To implement and pilot test our Self-Management Internet-Based Program for Older Adults with Overactive Bladder (OAB-SMIP) in a group of older adults with overactive bladder (OAB) to determine its usability and outcomes, including knowledge, self-efficacy, perception of bladder condition, and health-related quality of life. METHODS In a single-group study design with pre- and post-tests, we recruited 25 men and women age 55 or older with symptoms of OAB. The OAB-SMIP intervention consisted of 3 multimedia e-learning tutorials, social networking features, and other online resources delivered over 6 weeks. RESULTS Participants enjoyed the OAB-SMIP and found it easy to use. Participants demonstrated increased knowledge (SMD=4.17, large effect size), and their symptoms improved after the intervention (SMD=1.20-1.30, large effect sizes). Participants improved their overall self-efficacy (SMD=1.84, large effect size) as well as their self-efficacy in performing pelvic muscle exercises (SMD=1.41, large effect size) and controlling urge symptoms (SMD=1.32, large effect size), and there were significant increases in health-related quality of life (SMD=1.13, large effect size) after exposure to the OAB-SMIP. We did not find any significant gender differences. CONCLUSIONS Participants using the OAB-SMIP improved their knowledge, symptoms, self-efficacy in performing pelvic muscle exercises and overall management of OAB, as well as health-related quality-of-life scores.

Communicating global cardiovascular risk: Are icon arrays better than numerical estimates in improving understanding, recall and perception of risk?

OBJECTIVE Experts recommend that adults have their global cardiovascular risk assessed. We investigated whether icon arrays increase understanding, recall, perception of CVR, and behavioral intent as compared with numerical information. METHODS Male outpatient veterans, at an intermediate to high cardiovascular risk participated in a randomized controlled trial of a computer tutorial presenting individualized risk. Message format was presented in 3 formats: percentages, frequencies, and frequencies with icon arrays. We assessed understanding immediately (T1) and recall at 20 min (T2) and 2 weeks (T3) after the intervention. We assessed perceptions of importance/seriousness, intent to adhere, and self-efficacy at T1. Self-reported adherence was assessed at T3. RESULTS One-hundred and twenty male veterans participated. Age, education, race, health literacy and numeracy were comparable at baseline. There were no differences in understanding at T1 [p = .31] and recall at T3 [p = .10]. Accuracy was inferior with frequencies with icon arrays than percentages or frequencies at T2 [p ≤ .001]. There were no differences in perception of seriousness and importance for heart disease, behavioral intent, self-efficacy, actual adherence and satisfaction. CONCLUSION Icon arrays may impair short-term recall of CVR. PRACTICE IMPLICATIONS Icon arrays will not necessarily result in better understanding and recall of medical risk in all patients.

Simulating geriatric home safety assessments in a three-dimensional virtual world.

Virtual worlds could offer inexpensive and safe three-dimensionalenvironments in which medical trainees can learn to identify home safety hazards. Our aim was to evaluate the feasibility, usability, and acceptability of virtual worlds for geriatric home safety assessments and to correlate performance efficiency in hazard identification with spatial ability, self-efficacy, cognitive load, and presence. In this study, 30 medical trainees found the home safety simulation easy to use, and their self-efficacy was improved. Men performed better than women in hazard identification. Presence and spatial ability were correlated significantly with performance. Educators should consider spatial ability and gender differences when implementing virtual world training for geriatric home safety assessments.

An overactive bladder online self-management program with embedded avatars: a randomized controlled trial of efficacy.

OBJECTIVE To determine whether an avatar-based, online, self-management program is an effective therapeutic approach for women with overactive bladder (OAB). OAB is a highly prevalent symptom complex that significantly impacts health-related quality of life (HRQOL). Behavioral interventions can produce substantial improvement in symptoms and HRQOL. Online education programs offer patients with OAB an alternative to face-to-face self-management instruction. Evidence suggests that avatars (digital humans) embedded into online programs may help persuade and motivate patients to adopt healthy behaviors. METHODS In a 12-week, randomized, controlled trial, women (aged >55 years) with symptoms of OAB for at least 3 months were randomized to 2 versions of a 3-part, online, self-management program. After collecting the baseline metrics, the intervention group viewed a generic avatar coach with a self-avatar peer mentor designed to resemble the participant, and the control group viewed the identical online program with voice only. Participants viewed part 1 at week 1 and parts 2 and 3 at week 6. Participants completed daily bladder diaries throughout the 12-week period and OAB-related outcome measures at weeks 1, 6, and 12. RESULTS Forty-one women completed the study (mean age = 61 years, standard deviation = 6). The analysis of covariance of week-12 outcome measures with the baseline as covariates demonstrated significant improvements in the intervention group in OAB questionnaire HRQOL (P = .02; large effect), 24-hour frequency (P <.001; large effect), night-time urination (P <.001; large effect), urgency (P <.001; large effect), and urge incontinence (P <.001; large effect). CONCLUSION An avatar-based intervention embedded into an online self-management program improved OAB HRQOL and symptoms in women.

Computer-Based Programmed Instruction Did Not Improve the Knowledge Retention of Medication Instructions of Individuals With Type 2 Diabetes Mellitus

Purpose The purpose of this study was to investigate whether computer-based programmed instruction (CPI) with a dynamic avatar (DA) improves retention of medication information better than text (controls) or better than CPI with text (T-CPI), CPI with voice (V-CPI), or CPI with static avatar with text (SA-CPI). Methods Participants with type 2 diabetes mellitus were enrolled in a randomized controlled trial comparing TDS with CPI in 4 conditions (T-CPI, V-CPI, SA-CPI, and DA-CPI). CPI sequentially delivers segmented information in text or voice followed by a multiple-choice question. Immediately after the user selects an option, CPI delivers elaborated feedback. Satisfaction was measured immediately after the interventions, and medication knowledge was measured at 2 weeks. Results One-hundred fifty individuals (30 per group) with a mean age 62 years (standard deviation [SD] 7.99 years) participated. There were no baseline differences in race, body mass index, education, and health literacy. Medication knowledge retention at 2 weeks was not significantly different between the groups, df(4), F = 0.17, P = .95 (TDS, mean = 25.43, SD = 5.11; T-CPI, mean = 25.07, SD = 4.98; V-CPI, mean = 25.77, SD = 4.89; SA-CPI, mean = 25.83, SD = 5.31; and DA-CPI, mean = 24.93, SD = 6.25). Satisfaction scores were significantly lower for TDS, df(4), F = 3.11, P = .01. Conclusions CPI did not improve medication knowledge retention at 2 weeks. CPI led to higher patient satisfaction compared with controls.

Group-based differences in anti-aging bias among medical students.

Medical students (MS) may develop ageist attitudes early in their training that may predict their future avoidance of caring for the elderly. This study sought to determine MS’ patterns of explicit and implicit anti-aging bias, intent to practice with older people and using the quad model, the role of gender, race, and motivation-based differences. One hundred and three MS completed an online survey that included explicit and implicit measures. Explicit measures revealed a moderately positive perception of older people. Female medical students and those high in internal motivation showed lower anti-aging bias, and both were more likely to intend to practice with older people. Although the implicit measure revealed more negativity toward the elderly than the explicit measures, there were no group differences. However, using the quad model the authors identified gender, race, and motivation-based differences in controlled and automatic processes involved in anti-aging bias.

Healthcare Utilization by Frail, Community-Dwelling Older Veterans: A 1-Year Follow-up Study

Objectives Frailty is a prevalent clinical syndrome associated with a high risk of adverse health outcomes, including disability, morbidity, and mortality, that has become a major challenge for the healthcare system. The aim of this prospective study was to determine the level of healthcare utilization in prefrail and frail community-dwelling older military veterans. Methods We studied a cohort of community-dwelling older veterans aged 65 years and older 1 year at the Miami Veterans Affairs Medical Center to determine their levels of healthcare utilization. We administered the 5-item FRAIL (Fatigue, Resistance, Ambulation, Illnesses, & Loss of Weight) scale, from which patients were categorized into three groups: robust, prefrail, and frail. Chart reviews were conducted to confirm weight loss and number of illnesses. One year later, information regarding hospital admissions, emergency department (ED) visits, and primary care visits was obtained. Results We evaluated 291 participants, mean age 74 ± 8 years, 112 (38.5%) of whom were African American, 179 (61.5%) were white, and 40 (13.7%) were Hispanic. Overall, 49 (16.8%) participants were frail, and 161 (55.4%) prefrail. After adjusting for age and Charlson Comorbidity Index, frail status was associated with ED admission (odds ratio [OR] 2.7, 95% confidence interval [CI] 1.2–6.1) and primary care visits (OR 3.4, 95% CI 1.5–7.3); however, it was not significantly associated with hospital admission (OR 2.2, 95% CI 0.9–5.2). Conclusions In a sample of community-dwelling older veterans, frailty was found to be significantly associated with an increased frequency of ED visits and primary care visits, but not with hospital admissions. Identifying patients with frailty may allow for targeted interventions that improve healthcare outcomes and may reduce healthcare utilization.