Addressing racial inequality and its effects on vaccination rate: A trial comparing a pharmacist and peer educational program (MOTIVATE) in diverse older adults.

BACKGROUND: The mortality, morbidity, health care utilization, and cost attributable to vaccine-preventable diseases are substantial for those aged 50 years and older. Although vaccination is the most cost-effective strategy to prevent common infectious diseases in older adults, vaccination rates remain below US Centers for Disease Control and Prevention benchmarks, especially among racial minorities. Historical mistrust, structural racism within the US medical system, and misinformation contributed to lower immunization rates among minorities, especially Black Americans. To address the critical need to increase knowledge and trust in vaccination, 2 community-based educational interventions were tested: a pharmacist-led didactic session (PHARM) and a peer-led educational workshop (PEER). OBJECTIVE: To determine and compare the effectiveness and costs of PEER and PHARM community-based education models in improving knowledge and trust in vaccinations. METHODS: The Motivating Older adults to Trust Information about Vaccines And Their Effects (MOTIVATE) study was a cluster-randomized trial conducted in the greater Delaware Valley Region sites from 2017 to 2020. The included sites (7 senior centers, 3 housing units, 1 church, and 1 neighborhood family center) predominantly served Black communities. Participants were randomized to either PHARM or PEER sessions covering influenza, pneumococcal disease, herpes zoster, and beliefs related to vaccines. Peer leaders facilitated smaller workshops (5-10 participants), whereas pharmacists conducted larger didactic lectures with 15-43 participants. Outcomes were captured through a self-administered survey at baseline, postprogram, and 1 month after the program. Intervention costs were measured in 2017 US dollars. RESULTS: 287 participants were included. Their mean age was 74.5 years (SD = 8.94), 80.5% were women, 64.2% were Black, and 48.1% completed some college. Knowledge scores within groups for all 3 diseases significantly increased postprogram for both PEER and PHARM and were sustained at 1 month. Between-group knowledge differences were significant only for influenza (PEER participants had significantly larger improvement vs PHARM). Vaccination trust significantly increased in both groups. Total program costs were $11,411 for PEER and $5,104 for PHARM. CONCLUSIONS: Both interventions significantly improved knowledge and trust toward vaccination and retained their effect 1 month after the program. The 2 effective community-based education models should be expanded to ensure timely and trusted information is available to educate older adults about vaccine-preventable diseases. Further research is encouraged to assess the long-term cost-effectiveness of these models' utilization on a larger scale. DISCLOSURES: Dr Schafer is an employee of Merck; however, at the time of the project, he was a professor at Thomas Jefferson University. The other authors have no conflicts of interest to disclose. This study was supported in part by a research grant from the Investigator-Initiated Studies Program of Merck Sharp & Dohme Corp. The opinions expressed in this article are those of the authors and do not necessarily represent those of Merck Sharp & Dohme Corp. The sponsor played no role in the design and conduct of the study; in the collection, analysis, and interpretation of the data; or in the preparation, review, or approval of the article. Study Registration Number: NCT03239665.

Knowledge, Activation, and Costs of the Pharmacists' Pneumonia Prevention Program (PPPP): A Novel Senior Center Model to Promote Vaccination.

BACKGROUND: Vaccination is the best way to prevent pneumococcal disease (PD), but 40% of older adults remain unvaccinated nationwide, with even greater nonvaccination rates among African Americans (AAs). Prior studies suggest that insufficient knowledge contributes to low vaccination rates. The Pharmacists' Pneumonia Prevention Program (PPPP) was designed to improve older adults' knowledge about PD and pneumococcal vaccination (PV). OBJECTIVE: To measure PPPP's effect on knowledge and activation in a predominantly AA population and determine program costs. METHODS: PPPP uses a senior center model with a pharmacist presentation, actors' skit, and small-group action planning. Knowledge about PD risk, transmission, symptoms, and PV side effects was assessed at baseline (BL), postintervention (PT), and 3 months (M3) and analyzed using an intention-to-treat (ITT) approach. Actions taken (got vaccinated, spoke to doctor or pharmacist, discussed with family/friends) were assessed at M3. PPPP costs ($US 2013) included staff time, PV, actor, and site fees. RESULTS: Of 276 attending PPPP, 190 consented and were included in the ITT sample, which was largely black (80.5%) and female (76.3%) and had a mean age of 74.4 years. Knowledge improved by 46.8% (BL vs PT), with significant gains in all domains. At M3, knowledge improved by 54.2% vs BL, indicating sustained gains; 37.2% of previously unvaccinated participants reported receiving PV by M3. Program cost was $119 per attendee. CONCLUSION: PPPP significantly improved PD and PV knowledge. It could be delivered more efficiently by holding larger events on fewer dates, staffing with volunteers where appropriate, and utilizing a local pharmacy to manage the vaccine supply.