Mistrust of Researchers Correlates with Stroke Knowledge among Minority Seniors in a Community Intervention Trial.

BACKGROUND: Medical mistrust influences patients' treatment seeking, adherence, health behaviors, and minority participation in research studies. However, medical mistrust remains understudied within neurological diseases like stroke despite disproportionately affecting minority populations. OBJECTIVE: This study examines the relationship of medical mistrust with stroke knowledge among Black, Latino, Korean, and Chinese-Americans. METHODS: Subjects greater than 60 years were enrolled from senior centers to test a culturally-tailored educational curriculum around stroke risk reduction in a randomized controlled trial. A Trust Physician Scale and a modified Trust of Medical Researchers Scale measured medical mistrust. The Stroke Action Test instrument measured stroke knowledge, focusing on intent to call 911 appropriately when presented with stroke symptoms. RESULTS: Of 225 subjects, 69.5% were female (n = 157) with an average age of 73.7 years (standard deviation 6.7). Blacks had highest trust scores of physicians relative to Latino/a, Korean or Chinese subjects (P< .05). In multivariable analysis, decreased stroke knowledge was associated with decreased researcher trust at baseline (<.05), but not physician trust, when controlling for covariates. Among Latino/a, Korean, and Chinese groups, mainstream acculturation reduced the association between researcher trust and stroke knowledge. A mediation model showed no evidence of physician trust mediating researcher trust. CONCLUSIONS: Among minority seniors participating in a randomized controlled trial, decreased trust of researchers, not physicians, was associated with low baseline knowledge of stroke symptoms. Those least acculturated to US culture may be a particular focus for trust building intervention. Future studies should examine whether researcher mistrust is disproportionately preventing those with the largest knowledge gaps from participating in trials.

Choosing Wisely interventions to reduce antibiotic overuse in the safety net.

OBJECTIVES: Physician pay-for-performance (P4P) programs frequently target inappropriate antibiotics. Yet little is known about P4P programs' effects on antibiotic prescribing among safety-net populations at risk for unintended harms from reducing care. We evaluated effects of P4P-motivated interventions to reduce antibiotic prescriptions for safety-net patients with acute respiratory tract infections (ARTIs). STUDY DESIGN: Interrupted time series. METHODS: A nonrandomized intervention (5/28/2015-2/1/2018) was conducted at 2 large academic safety-net hospitals: Los Angeles County+University of Southern California (LAC+USC) and Olive View-UCLA (OV-UCLA). In response to California's 2016 P4P program to reduce antibiotics for acute bronchitis, 5 staggered Choosing Wisely-based interventions were launched in combination: audit and feedback, clinician education, suggested alternatives, procalcitonin, and public commitment. We also assessed 5 unintended effects: reductions in Healthcare Effectiveness Data and Information Set (HEDIS)-appropriate prescribing, diagnosis shifting, substituting antibiotics with steroids, increasing antibiotics for ARTIs not penalized by the P4P program, and inappropriate withholding of antibiotics. RESULTS: Among 3583 consecutive patients with ARTIs, mean antibiotic prescribing rates for ARTIs decreased from 35.9% to 22.9% (odds ratio [OR], 0.60; 95% CI, 0.39-0.93) at LAC+USC and from 48.7% to 27.3% (OR, 0.81; 95% CI, 0.70-0.93) at OV-UCLA after the intervention. HEDIS-inappropriate prescribing rates decreased from 28.9% to 19.7% (OR, 0.69; 95% CI, 0.39-1.21) at LAC+USC and from 40.9% to 12.5% (OR, 0.72; 95% CI, 0.59-0.88) at OV-UCLA. There was no evidence of unintended consequences. CONCLUSIONS: These real-world multicomponent interventions responding to P4P incentives were associated with substantial reductions in antibiotic prescriptions for ARTIs in 2 safety-net health systems without unintended harms.

Community-Partnered Evaluation of the Aging Mastery Program in Los Angeles Area Senior Centers.

Background. The National Council on Aging's Aging Mastery Program (AMP) aims to help older adults implement health behavior and lifestyle changes to promote healthy aging and social engagement. The purpose of the present community-partnered evaluation was to test the effectiveness of AMP implementation in Los Angeles County to improve participants' quality of life, global physical and mental health, and patient activation. Method. A modified randomized wait-list controlled trial design was used to examine experimental, quasi-experimental, and dose-response evidence in five senior centers. Participants completed questionnaires at baseline and after the 10-week intervention, self-reporting their overall quality of life, physical health, mental health, and patient activation. Results. Experimental, intention-to-treat analyses found AMP assignment did not affect any measured outcomes (n = 71). Quasi-experimental, "as treated" analyses (n = 106) controlling for study site and sociodemographic characteristics indicated that participants who attended AMP reported more positive changes in global mental health than the control group. Attending AMP was not associated with changes in quality of life, physical health, or patient activation. Dose-response analyses among AMP participants who attended at least one class (n = 75) found that attending more classes was not significantly associated with greater improvements in mental health. Conclusions. Experimental, intention-to-treat analyses did not support effectiveness of AMP on quality of life, physical or mental health, or patient activation; quasi-experimental analyses found attending AMP was associated with improvements in mental health. Recruitment challenges and participants' nonadherence with condition assignment decreased our ability to detect effects. https://clinicaltrials.gov/ct2/show/NCT03342729?term=Aging+Mastery+Program&rank=1 .

Evaluation of Recruitment of Older Adults of Color into a Community-Based Chronic Disease Self-Management Wellness Pathway Program in Los Angeles County.

Background: Established relationships between researchers, stakeholders and potential participants are integral for recruitment of potential older adult participants and Evidence-Based Programs (EBPs) for chronic disease management have empirically been shown to help improve health and maintain healthy and active lives. To accelerate recruitment in EBPs and potential future research, we propose a Wellness Pathway allowing for delivery within multipurpose senior centers (MPCs) linked with medical facilities among lower-income urban older adults. The study aims were to: 1) assess the effectiveness of three MPC-delivered EBPs on disease management skills, health outcomes, and self-efficacy; and 2) assess the feasibility of the proposed Wellness Pathway for lower-income urban-dwelling older adults of color. Methods: We administered surveys and conducted a pre-post analysis among participants enrolled in any 1 of 3 MPC-based EBPs (n=53). To assess feasibility of the pathway, we analyzed survey data and interviews (EBP participants, MPC staff, physicians, n=10). Results: EBP participation was associated with greater disease management skills (increased time spent stretching and aerobic activity) but not improvements in self-efficacy or other health outcomes. Interviews revealed: 1) older adults valued EBPs and felt the Wellness Pathway feasible; 2) staff felt it feasible given adequate growth management; 3) physicians felt it feasible provided adequate medical facility integration. Conclusions: MPC-based EBPs were associated with improvements in disease management skills among older adults; a proposed Wellness Pathway shows early evidence of feasibility and warrants further investigation. Future efforts to implement this model of recruiting older adults of color into EBPs should address barriers for implementation and sustainability.

"Worth the Walk": Culturally Tailored Stroke Risk Factor Reduction Intervention in Community Senior Centers.

Background Racial/ethnic minority older adults have worse stroke burden than non-Hispanic white and younger counterparts. Our academic-community partner team tested a culturally tailored 1-month (8-session) intervention to increase walking and stroke knowledge among Latino, Korean, Chinese, and black seniors. Methods and Results We conducted a randomized wait-list controlled trial of 233 adults aged 60 years and older, with a history of hypertension, recruited from senior centers. Outcomes were measured at baseline (T0), immediately after the 1-month intervention (T1), and 2 months later (T2). The primary outcome was pedometer-measured change in steps. Secondary outcomes included stroke knowledge (eg, intention to call 911 for stroke symptoms) and other self-reported and clinical measures of health. Mean age of participants was 74 years; 90% completed T2. Intervention participants had better daily walking change scores than control participants at T1 (489 versus -398 steps; mean difference in change=887; 97.5% CI, 137-1636), but not T2 after adjusting for multiple comparisons (233 versus -714; mean difference in change=947; 97.5% CI, -108 to 2002). The intervention increased the percent of stroke symptoms for which participants would call 911 (from 49% to 68%); the control group did not change (mean difference in change T0-T1=22%; 99.9% CI, 9-34%). This effect persisted at T2. The intervention did not affect measures of health (eg, blood pressure). Conclusions This community-partnered intervention did not succeed in increasing and sustaining meaningful improvements in walking levels among minority seniors, but it caused large, sustained improvements in stroke preparedness. Clinical Trial Registration URL : http://www.clinicaltrials.gov . Unique identifier: NCT 02181062.

Evaluation of an Intervention to Reduce Low-Value Preoperative Care for Patients Undergoing Cataract Surgery at a Safety-Net Health System.

Importance: Preoperative testing for cataract surgery epitomizes low-value care and still occurs frequently, even at one of the nation's largest safety-net health systems. Objective: To evaluate a multipronged intervention to reduce low-value preoperative care for patients undergoing cataract surgery and analyze costs from various fiscal perspectives. Design, Setting, and Participants: This study took place at 2 academic safety-net medical centers, Los Angeles County and University of Southern California (LAC-USC) (intervention, n = 469) and Harbor-UCLA (University of California, Los Angeles) (control, n = 585), from April 13, 2015, through April 12, 2016, with 12 additional months (April 13, 2016, through April 13, 2017) to assess sustainability (intervention, n = 1002; control, n = 511). To compare pre- and postintervention vs control group utilization and cost changes, logistic regression assessing time-by-group interactions was used. Interventions: Using plan-do-study-act cycles, a quality improvement nurse reviewed medical records and engaged the anesthesiology and ophthalmology chiefs with data on overuse; all 3 educated staff and trainees on reducing routine preoperative care. Main Outcomes and Measures: Percentage of patients undergoing cataract surgery with preoperative medical visits, chest x-rays, laboratory tests, and electrocardiograms. Costs were estimated from LAC-USC's financially capitated perspective, and costs were simulated from fee-for-service (FFS) health system and societal perspectives. Results: Of 1054 patients, 546 (51.8%) were female (mean [SD] age, 60.6 [11.1] years). Preoperative visits decreased from 93% to 24% in the intervention group and increased from 89% to 91% in the control group (between-group difference, -71%; 95% CI, -80% to -62%). Chest x-rays decreased from 90% to 24% in the intervention group and increased from 75% to 83% in the control group (between-group difference, -75%; 95% CI, -86% to -65%). Laboratory tests decreased from 92% to 37% in the intervention group and decreased from 98% to 97% in the control group (between-group difference, -56%; 95% CI, -64% to -48%). Electrocardiograms decreased from 95% to 29% in the intervention group and increased from 86% to 94% in the control group (between-group difference, -74%; 95% CI, -83% to -65%). During 12-month follow-up, visits increased in the intervention group to 67%, but chest x-rays (12%), laboratory tests (28%), and electrocardiograms (11%) remained low (P < .001 for all time-group interactions in both periods). At LAC-USC, losses of $42 241 in year 1 were attributable to intervention costs, and 3-year projections estimated $67 241 in savings. In a simulation of a FFS health system at 3 years, $88 151 in losses were estimated, and for societal 3-year perspectives, $217 322 in savings were estimated. Conclusions and Relevance: This intervention was associated with sustained reductions in low-value preoperative testing among patients undergoing cataract surgery and modest cost savings for the health system. The findings suggest that reducing low-value care may be associated with cost savings for financially capitated health systems and society but also with losses for FFS health systems, highlighting a potential barrier to eliminating low-value care.

A high-fat meal or injection of lipids stimulates ethanol intake.

Findings of earlier studies support the idea of a possible relation between dietary fat and ethanol intake, but it is unclear whether acute exposure to fat can increase ethanol consumption directly. In the current series of experiments, we examined whether daily overeating of fat, a single high-fat meal, or the injection of fat can increase ethanol intake. In Experiment 1, adult Sprague-Dawley rats were maintained on a high-fat diet (50% fat) for 7 days and switched subsequently to a laboratory chow diet while being trained to drink 9% ethanol. Rats that had eaten the greatest amount of the high-fat diet subsequently drank the most ethanol. In Experiment 2, a 1-h meal of the high-fat diet (50% fat) produced a significant increase in 7% ethanol consumption in comparison with what occurred after consumption of an equicaloric, low-fat (10% fat) meal. In Experiment 3, the orosensory effect of fat was eliminated with an intraperitoneal injection of a fat emulsion, Intralipid (20% fat, 5.0 ml). The injection of Intralipid, in comparison with saline, increased the ingestion of 9% ethanol. This finding is in contrast to what occurred with injection of an equicaloric, 50% glucose solution, which suppressed ethanol intake. These findings provide new evidence to support a positive relation between dietary fat and the consumption of ethanol.

Sugar-dependent rats show enhanced intake of unsweetened ethanol.

Rats show signs of dependence on sugar when it is available intermittently, including bingeing, withdrawal, and cross-sensitization with amphetamine. In the current study, we sought to determine whether sugar-dependent rats would show increased intake of unsweetened ethanol and, conversely, whether intermittent access to ethanol would augment sugar consumption. In Experiment 1, with intermittent versus ad libitum access to ethanol, Sprague-Dawley rats were given escalating concentrations of ethanol (1%, 2%, 4%, 7%, and 9%) over the course of 20 days. Rats in the intermittent ethanol access group, with 12-h daily access, consumed more 4%, 7%, and 9% ethanol during the first hour of access, and more 9% ethanol daily, than did rats in the ad libitum ethanol access group. In Experiment 2, with ethanol as a gateway to sugar intake, the rats from Experiment 1 were switched to 10% sucrose with 12-h daily access for 1 week. Rats in the intermittent ethanol access group consumed significantly more sugar than was consumed by rats in a control group with no prior ethanol experience. In Experiment 3, with sugar as a gateway to ethanol to determine whether sugar dependence leads to increased ethanol intake, four groups were maintained for 21 days according to the following designations: intermittent access to sugar and chow, ad libitum access to sugar and chow, intermittent access to chow, or ad libitum access to chow. Four days later, all groups were switched to intermittent ethanol access, as described in Experiment 1. The group with intermittent access to sugar and chow consumed the most 9% ethanol, supporting the suggestion that sugar dependence alters a rat's proclivity to drink ethanol. These results may relate to the co-morbidity between binge-eating disorders and alcohol intake and the tendency of people abstaining from alcohol to consume excessive amounts of sugar. In conclusion, bingeing on either ethanol or sugar fosters intake of the other.