Pneumococcal Vaccination Rates Research Articles

Impact of COVID-19 on Influenza and Pneumococcal Vaccination of Psoriatic Patients in Germany: Results from Vac-Pso.

Suboptimal influenza and pneumococcal vaccination rates have been reported before the COVID-19 pandemics in certain populations at risk for severe infection. The aim of this longitudinal cohort study was to investigate changes in influenza and pneumococcal vaccination rates and patient perceptions in patients with psoriasis (PsO) before and during the pandemic. Data on vaccination, patient and disease characteristics, comorbidity, and patient perceptions were collected with questionnaires before and during the pandemic approximately one year later. Over the whole cohort who participated in the follow-up visit (n = 287; 59.2% male; mean age: 56.3 years), both influenza and pneumococcal lifetime vaccination prevalences increased significantly from 50.5% to 66.2% and from 16.0% to 41.5%, respectively. A total of 88.5% of PsO patients were interested in a COVID-19 vaccination or had already received it. The reasons for and against vaccinations changed significantly before and during the pandemic. Despite a promising increase in the vaccination prevalence in our PsO cohort, it remains important that awareness for vaccinations is encouraged and closely monitored in future research, particularly in populations at risk.

A System Intervention to Increase Pneumococcal Vaccination Rates in Adults Living With Human Immunodeficiency Virus Who Present for Scheduled Medical Care

Abstract Pneumococcal vaccinations are recommended for adults living with HIV; however, eligibility criteria are complex. At a clinic specializing in the care of lesbian, gay, bisexual, transgender, or queer/questioning persons, only 36% of patients who were vaccine-eligible received the vaccination. A set of decision trees was developed to guide clinic personnel in determining whether a vaccine is recommended. The provider then determined whether the vaccine was appropriate based on each patient's complete clinical presentation. When appropriate, patients were offered the vaccine at the same appointment. This practice change led to a 22% increased vaccination rate.

Improving Pneumococcal Vaccination Rates in Immunosuppressed Pediatric Patients with Rheumatic Disease.

Patients with rheumatic diseases are at a high risk of invasive pneumococcal disease due to immunosuppression. We conducted a quality improvement project, and the first aim was to increase the percentage of patients with systemic lupus erythematosus and mixed connective tissue disease that is up to date on pneumococcal vaccinations from 9.6% to 80% within one year. Subsequently, the second aim was to increase the percentage of patients on immunosuppression with systemic lupus erythematosus, mixed connective tissue disease, juvenile dermatomyositis and systemic vasculitis that is up to date on pneumococcal vaccinations from 62.6% to 80% within one year. Two process measures were up-to-date vaccination status on (1) 13-valent pneumococcal conjugated vaccine (PCV13) and (2) 23-valent pneumococcal polysaccharide vaccine (PPSV23). Our outcome measure was being fully up to date on both pneumococcal vaccinations. Interventions included an immunization algorithm, reporting of eligible patients, education, reminders, and pre-visit planning. There were shifts in the centerline for all quality measures in both phases of this project. The combined pneumococcal vaccination rate for Phase 1 increased from 9.6% to 91.1%, and this centerline was sustained. Pneumococcal vaccination rates also significantly increased for Phase 2: 68.8% to 93.4% for PCV13, 65.2% to 88.5% for PPSV23, and 62.6% to 86.5% for the combined pneumococcal vaccination rate. Quality improvement methodology significantly increased and sustained pneumococcal vaccination rates in our high-risk, immunosuppressed patients. We continue to prioritize this important initiative to mitigate the risk of invasive pneumococcal disease.

Pneumococcal Perplexity: Improving Awareness of Updated Pneumococcal Vaccination Recommendations in Two Large Military Treatment Facilities.

Vaccinations are an essential aspect of preventive medicine. In October 2021, the pneumococcal conjugate vaccine-20 (PCV-20) and PCV-15 were authorized for use in adults by the U.S. FDA. In 2022, the Advisory Committee on Immunization Practices (ACIP) subsequently published updated pneumococcal vaccination recommendations that incorporate both PCV-20 and PCV-15. Pneumococcal vaccination is effective in reducing pneumococcal disease, particularly in high-risk patient groups such as those with chronic lung disease; however, the updated dosing schedule for pneumococcal vaccinations can be quite confusing, especially if patients have previously received "older" vaccinations, such as pneumococcal polysaccharide vaccine-23 or PCV-13. The purpose of this quality improvement project was to increase providers' knowledge of current ACIP pneumococcal vaccination recommendations, including indications and dosing schedule, and to improve pneumococcal vaccination rates among eligible adults and children. Focused education sessions were presented to primary care and subspecialty residents, fellows, and staff at Brooke Army Medical Center and Wilford Hall Ambulatory Surgical Center regarding current ACIP pneumococcal vaccination recommendations. Sessions included information about PCV-15 and PCV-20 vaccines, indications for vaccination, and dosing schedules. Subjective knowledge of updated ACIP pneumococcal vaccination recommendations was assessed among primary care and subspecialty residents, fellows, and staff via an anonymous survey both pre- and post-intervention. Number of PCV-20 vaccinations given and estimated vaccination rates of patients aged 19 to 64 years with asthma were assessed pre- and post-intervention over a 6 month time span. Of surveyed providers, only 9% discussed vaccinations at every visit and 11% did not discuss vaccinations at all. There was a statistically significant increase in providers' knowledge of pneumococcal vaccination guidelines for children post-intervention (P = .01) but no statistically significant increase in knowledge for guidelines for adults, for patients that have received prior pneumococcal vaccines, or in overall confidence in recommending pneumococcal vaccines. There was a 17% increase in the number of PCV-20 vaccinations given post-intervention (198 pre-intervention, 232 post-intervention). The estimated PCV-20 vaccination rate for adults aged 19 to 64 years with asthma increased from 14.9% pre-intervention to 19.5% post-intervention (P = .33). There is a significant knowledge gap regarding ACIP pneumococcal vaccination recommendations among military providers and a low pneumococcal vaccination rate for adults aged 19 to 64 years with asthma at Joint Base-San Antonio MTFs. Focused education sessions were effective in increasing providers' knowledge of updated pneumococcal vaccination recommendations, confidence in recommending vaccines, total number of pneumococcal vaccinations given, and estimated pneumococcal vaccination rate for adults with asthma. The validity of conclusions drawn from our data were limited because of discordant numbers of survey respondents as well as potentially inaccurate estimates of pneumococcal vaccination rates pre- and post-intervention. Despite this, the results warrant continued education of pneumococcal vaccines, indications, and dosing schedules.

The Uptake of Pneumococcal and Seasonal Influenza Vaccinations Based on Perceptions and Attitudes Toward the COVID-19 Vaccine Among Patients With Diabetes.

Objective In this study, we aimed to assess the rates of pneumococcal and seasonal influenza vaccinations among elderly and nonelderly diabetes patients andexamine their perceptions and attitudes toward the coronavirus disease 2019 (COVID-19) vaccine. Methods A single-center study was conducted among patients with diabetes, employing a structured survey encompassing sociodemographic data, vaccination records, and the COVID-19 vaccine perception and attitude scale. Results Among the 280 diabetes patients in our study, the vaccination rates for COVID-19, seasonal influenza, and pneumococcal vaccines were 96.1%, 16.8%, and 17.5%, respectively. A higher cumulative dosage of the COVID-19 vaccine was associated with older age (r = 0.463; p<0.001), increased safety score (r = 0.479; p<0.001), and lower conspiracy theory score (r = -0.336; p<0.001). Participants who had received COVID-19 and influenza vaccines were observed to have significantly higher safety scores related to COVID-19 vaccines (p<0.001; d = 2.381and p = 0.008; d = 0.525, respectively).Notably, vaccination rates for influenza and pneumococcus were significantly different between nonelderly and elderly patients (8.7% vs. 29.6%; p<0.001 and 13.4% vs. 24.1%; p = 0.022). Elderly patients with diabetes were 3.3 times more likely to receive the influenza vaccine than nonelderly participants [odds ratio (OR) = 3.319; 95% confidence interval (CI) = 1.592 - 6.920; p = 0.001] and had a higher safety score related to COVID-19 vaccines (OR= 1.076; 95% CI = 1.011 - 1.146; p = 0.021). Conclusions Both influenza and pneumococcal vaccination rates were below the desired targets in this study. The vaccination rates among the nonelderly diabetes population suggest that this group may be more likely to neglect to receive vaccination compared to the elderly diabetes population. The association between vaccination rates and post-pandemic safety perceptions highlights the critical need to implement public health strategies specifically designed to address and improve safety-related information dissemination.

Effectiveness of a Program to Raise Awareness About Pneumococcal Vaccination Among Physicians and Patients with Chronic Respiratory Diseases: A Multicenter Cohort Study.

There is a need to increase patient and clinician awareness on the effectiveness of pneumococcal vaccination in at-risk groups. The aim of the study was to evaluate the effect of reminders for physicians and patients using the vaccination tracking system created in the hospital information management system (HIMS) on the vaccination rate, and the effect of pneumococcal vaccination on pneumonia-related hospitalization and mortality over a 12-month period. This prospective observational cohort study was undertaken during a 2-year period in 3 tertiary care centers. Patients were followed up for 12 months following vaccination, and hospital admissions and mortality were recorded via HIMS. During the campaign, HIMS transmitted pneumococcal immunization reminder messages in accordance with guideline recommendations to physicians' computers and patients' mobile phones. Educational posters on pneumococcal vaccination were posted in outpatient clinics. Regular seminars on the evidence for pneumococcal vaccination were organized. All patients who were hospitalized during the follow-up period for chronic obstructive pulmonary disease (COPD), asthma, lung cancer, or pneumonia were analyzed in relation to their vaccination history regarding clinical outcomes. A total of 29530 patients were included in the study. During the study period, the annual vaccination rate increased by 74.4% and reached 4.8% in 3 hospitals (P = .001). The rates were 3.9% in patients older than 65 years without comorbidities and 5.2% in those with COPD and asthma (P = .002). In pneumococcal vaccine recipients, pneumonia-related hospital mortality was lower (relative risk (RR) = 0.19, CI 0.09-0.35, P < .001). It is possible to raise the rate of pneumococcal vaccination through awareness campaigns. Individuals with COPD and asthma are more willing to receive pneumococcal vaccination. Among patients hospitalized for pneumonia, prior pneumococcal vaccination is associated with lower mortalit.

Pharmacist impact on pneumococcal vaccination rates through incorporation of pharmacist‐led opportunistic inpatient vaccination intervention

AbstractBackgroundPneumococcal disease continues to be a large source of morbidity and mortality despite the availability of effective prevention via immunisation and treatment measures.AimTo assess the impact of a pharmacist‐led opportunistic inpatient pneumococcal vaccination intervention on overall 13‐valent pneumococcal conjugate vaccine (13vPCV) rates in eligible hospitalised subacute patients, aged 70 years and above.MethodThis study was a pre‐ and post‐intervention study conducted across two study sites at Monash Health, a large metropolitan health service in Victoria, Australia. Phase 1 (pre‐intervention, August–October 2022) involved auditing the vaccine‐eligibility of patients on admission and subsequent administration during inpatient stay. Phase 2 (intervention phase, October–December 2022) implemented the pharmacist‐led opportunistic inpatient pneumococcal vaccine intervention. Following screening, identified vaccine‐eligible patients were recommended to the treating physician via verbal discussion and Microsoft Teams for consideration of vaccination administration in hospital. The proportion of eligible patients vaccinated was compared between the pre‐intervention and intervention groups. This project was exempt for ethics approval due to the local policy requirements that constitute research by the Monash Health Human and Research Ethics Committee (Reference no: RES‐22‐0000‐454Q). The justification for this ethics exemption was as follows: the project complies with the National Health and Medical Research Council's Ethical considerations in quality assurance and evaluation activities; auditing the percentage of vaccine‐eligible and non‐vaccinated patients did not require written consent per local requirements; and it is standard practice to obtain verbal consent, followed by documentation on electronic medical records, for inpatient vaccinations. Informed consent was obtained from participants via verbal consent after the distribution of written medical information on the 13vPCV, as well as verbal information provided by the medical team.ResultsA total of 360 patients were included in the study. Overall, 139 (77.2%) patients in the pre‐intervention and 143 (79.4%) patients in the intervention phase were eligible for vaccination (non‐vaccinated with age indication). The proportion of patients receiving inpatient 13vPCV was higher in the intervention group compared to the pre‐intervention group (43.4 vs 2.2%, p &lt; 0.001).ConclusionThe results indicate that incorporating a pharmacist‐led opportunistic inpatient pneumococcal vaccination intervention can significantly increase pneumococcal vaccination in hospital.

1173. Risk of Pneumococcal Disease and Rate of Pneumococcal Vaccination Among Medicare Beneficiaries Aged 65 Years and Older Residing in Long-Term Care Facilities — United States, September 1, 2014 – December 31, 2019

Abstract Background Adults living in long-term care (LTC) facilities are at increased risk of respiratory infectious diseases, including pneumococcal disease. On August 13, 2014, the Advisory Committee on Immunization Practices recommended 13-valent pneumococcal conjugate vaccine (PCV13) in addition to 23-valent pneumococcal polysaccharide vaccine (PPSV23) for adults aged ≥65 years based on data that showed PCV13 vaccination confers protection against all-cause community-acquired pneumonia (CAP) and invasive pneumococcal disease (IPD). We assessed PCV13 vaccination coverage and incidence of CAP and IPD among Medicare beneficiaries with ≥1 LTC stay. Methods We identified Medicare Fee-for-Service beneficiaries aged ≥65 years with no prior PCV13 receipt and ≥1 LTC facility stay during September 1, 2014 through December 31, 2019 through Minimum Data Set assessments and skilled nursing facility claims. PCV13 and PPSV23 vaccination history was determined through Medicare claims using Healthcare Common Procedure Coding System and Current Procedural Terminology codes. Incident IPD and CAP outcomes were identified through inpatient Medicare claims using International Classification of Diseases diagnosis codes (ICD-9-CM/ICD-10-CM). Outcome incidence was calculated based on time during and outside LTC stays. PCV13 coverage was assessed by LTC residency status on December 31, 2019. Results There were 3,643,248 beneficiaries with ≥1 LTC facility stay during the observation period. Beneficiaries were majority white (89.9%), female (62.1%), aged ≥75 years (67.7%), and had ≥1 chronic medical condition (55.7%); 25.6% had received PPSV23 vaccination at the study start date. By December 31, 2019, PCV13 coverage was 55.3%; coverage among those residing in and outside a LTC facility was 47.5% and 57.3%, respectively. Incidence of CAP and IPD were higher during LTC compared with time outside LTC stay (incidence rate ratio 3.17 [95% CI: 3.15, 3.19] and 1.90 [95% CI: 1.80, 2.00] for CAP and IPD, respectively) (Table). Conclusion Incidence of IPD and CAP were higher during an LTC stay compared with time residing outside of a LTC facility. PCV13 coverage was lower among those in LTC. Improving pneumococcal vaccination coverage may help mitigate the risk of IPD and CAP in this population. Disclosures All Authors: No reported disclosures

Post COVID19 vaccination burnout?: Providers’ perspectives on patients with lung cancer.

401 Background: Patients with solid cancers undergoing chemotherapy or immunotherapy face increased risk of infections due to their immunosuppression and are recommended to undergo routine vaccination. However, despite increased attention to vaccination with the COVID19 pandemic, vaccination rates remain suboptimal among patients with cancer. Methods: Retrospective chart review was used to determine baseline rates of COVID19, Influenza, and Pneumococcal vaccination among a cohort of newly diagnosed patients with lung cancer at multi-site academic cancer center from 2018-2022 (n = 624). An anonymous survey was distributed to all Hematology-Oncology providers (n = 101) at the same institution with questions on current practice on accessing vaccination records and barriers to vaccinating patients starting chemotherapy and/or immunotherapy. Results: The baseline documented COVID-19 vaccination rate was 29.6%, while the baseline documented influenza and pneumococcal vaccination rates were 27.2% and 1.42%, respectively. Survey response was 32.7% (n = 33). Respondents were 60.0% Female (n = 15), 52.0% 30 - 39 years old (n = 13), 56.0% Attending Physicians (n = 14), 28.0% Fellow Physicians (n = 7), and 16.0% Nurse Practitioners (n = 4). 54.5% and 57.6% of respondents always recommended or discussed COVID19 and influenza vaccination, respectively, with their patients on chemotherapy or immunotherapy regardless of cancer type. 12.1% of respondents always recommended pneumococcal vaccination with their patients. The most common moderate barriers to COVID19 and influenza vaccination were “not having enough time” (COVID19, n = 12, 40.0%), (Influenza, n = 7, 26.9%), and “forgetting to bring up vaccines during the visit” (COVID19, n = 12, 40.0%), (Influenza, n = 9, 34.9%). “Not knowing when to administer the vaccine” was a moderate barrier to pneumococcal vaccination in 53.8% of respondents (n = 14). The most common preferred method for obtaining vaccination record information was through patient interview (n = 14, 63.6%). Similar trends were noted when limited to providers who cared for patients with lung cancer. Conclusions: Patients with lung cancer at this academic medical center were found to have low documented rates for COVID19, influenza, and pneumococcal vaccination. Common barriers in vaccination included lack of time and forgetting to bring up vaccination, but lack of knowledge of vaccination timing was only a significant barrier for pneumococcal vaccination. Improvement initiatives to address these identified factors are forthcoming.

Pneumococcal and influenza vaccine awareness in individuals over 65 years

Aims: Vaccination is of great importance due to the increased risk of infection as a result of changes in the immune system with aging and the weak immune response against these infections. In this study, it was aimed to determine the pneumococcal and influenza vaccination awareness and vaccination rates of individuals aged 65 years and over, to direct the unvaccinated individuals to be vaccinated and to protect them from possible infections and complications.&#x0D; Methods: A questionnaire form was filled in by asking demographic information, awareness of influenza and pneumococcal vaccines and the status of vaccination of individuals aged 65 years and over who applied to the clinic between June and September 2020. Unvaccinated individuals were referred to the vaccination unit.&#x0D; Results: A total of 553 elderly individuals aged 65 years and over, 338 women and 215 men, were included in the study. Among the study participants, the rate of patients with awareness of influenza/pneumococcal vaccine was 48.5%. Although the vaccination awareness rate was higher in males, non-smokers, those with higher education level, those with at least one of the comorbidities such as hypertension, coronary artery disease, hyperlipidemia, chronic renal failure, vaccination rates were lower in patients with these comorbidities and additionally diabetes mellitus. The majority of individuals with awareness were informed by healthcare workers. The rate of vaccination among the individuals participating in the study was 18.4%. Vaccination was higher in individuals with awareness. While 5.3% of those who were not vaccinated were hospitalized for pneumonia, those who were vaccinated did not have pneumonia severe enough to require hospitalization.&#x0D; Conclusion: In order to fight with the increasing vaccine hesitancy in our society, healthcare workers should be educated, the media should be supported, and vaccination should be encouraged in every clinic application.

Prevalence Rates of Pneumococcal Vaccination in IBD and 30-Day Clinical Outcomes in Patients With IBD and Pneumococcal Disease Stratified by Receipt of Pneumococcal Vaccination: A Multi-Network Study.

Lay Summary This study sought to assess outcomes associated with pneumococcal vaccination in adult inflammatory bowel disease patients. Results found unvaccinated patients had higher adverse outcomes, including greater risk of hospitalization, ICU admission, ventilation, and mortality. These findings underscore the importance of pneumococcal vaccination.

Hemodiyaliz hastalarında aşılanma oranları ve farkındalığı

Aims: Vaccination is main risk reducing strategy for vaccine-preventable infections in chronic kidney disease (CKD) patients, but vaccination rates in hemodialysis patients are not at the desired level. In this study, we aimed to search the rates of influenza, pneumococcal, hepatitis B and coronavirus disease-2019 (COVID-19) vaccination, the vaccination awareness and the reasons for not taking vaccination in hemodialysis patients.&#x0D; Methods: In this cross-sectional study, 232 CKD patients undergoing hemodialysis in two centers for at least six months were included. The patients completed the questionnaire about vaccination. The data about patients’ history of vaccination regarding influenza, pneumococcal, hepatitis B and COVID-19 vaccines; patients’ attitudes and knowledge about vaccination; the source of information about vaccination were collected via this questionnaire.&#x0D; Results: The rates of pneumococcal, influenza, hepatitis B and COVID-19 vaccination were 9.9%, 56.6%, 38.8% and 87.1%, respectively. In patients with missing vaccination, the main reasons for not taking vaccination were lack of knowledge about vaccination (48.7%), the thought that the vaccine is not beneficial (12.5%) and fear of adverse effects (3.4%). The main sources of information about vaccination were healthcare workers (90.5%), radio/televison (1.7%) and internet (1.7%). &#x0D; Conclusion: Our findings showed that the rates of influenza, pneumococcal and hepatitis B vaccination were below the targeted levels and the main reason was the lack of information about vaccination and the main source of information about vaccination was health personnel. Strategies should be developed to increase the awareness and rate of vaccination for vaccine-preventable infections in CKD patients.

A Nationwide Digital Multidisciplinary Intervention Aimed at Promoting Pneumococcal Vaccination in Immunocompromised Patients.

Immunocompromised patients (IPs) are at high risk for infections, some of which are vaccine-preventable. The Israeli Ministry of Health recommends pneumococcal conjugate vaccine 13 (PCV13) and pneumococcal polysaccharide vaccine 23 (PPSV23) for IP, but vaccine coverage is suboptimal. We assessed the project's effectiveness in improving the pneumococcal vaccination rate among IP. An automated population-based registry of IP was developed and validated at Maccabi Healthcare Services, an Israeli health maintenance organization serving over 2.6 million members. Included were transplant recipients, patients with asplenia, HIV or advanced kidney disease; or those receiving immunosuppressive therapy. A personalized electronic medical record alert was activated reminding clinicians to consider vaccination during IP encounters. Later, IP were invited to get vaccinated via their electronic patient health record. Pre- and post-intervention vaccination rates were compared. Between October 2019 and October 2021, overall PCV13 vaccination rates among 32,637 IP went up from 11.9% (n = 3882) to 52% (n = 16,955) (p < 0.0001). The PPSV23 vaccination rate went up from 39.4% (12,857) to 57.1% (18,652) (p < 0.0001). In conclusion, implementation of targeted automated patient- and clinician-facing alerts, a remarkable increase in pneumococcal vaccine uptake was observed among IP. The outlined approach may be applied to increase vaccination uptake in large health organizations.

Pneumococcal vaccination coverage among US adults enrolled in Medicaid and newly diagnosed with underlying medical conditions

ABSTRACTBackgroundAdults with chronic or immunocompromising conditions have an elevated risk of invasive pneumococcal disease, yet their pneumococcal vaccination rates remain low.MethodsThis retrospective cohort study used the IBM MarketScan® Multi-State Medicaid database to examine pneumococcal vaccination uptake among adults 19–64 years of age with underlying conditions. Gompertz accelerated failure time model was used to examine factors associated with vaccination.ResultsIn the study population of 108,159 adults, the vaccination rate was 4.1% after 1 year of follow-up and 19.4% after 10 years. The mean time from initial diagnosis to vaccination was 3.9 years. Adults aged 35–49 and 50–64 years (relative to 19–34) or those receiving an influenza vaccination were more likely to receive a pneumococcal vaccination. Adults with HIV/AIDS were more likely, while adults with chronic heart or lung disease, alcohol or tobacco dependence, or cancer were less likely to be vaccinated than adults with diabetes mellitus. Adults diagnosed by specialists were less likely to be vaccinated than those diagnosed by primary care providers.ConclusionsThe rates of pneumococcal vaccination among adults with Medicaid plans and underlying conditions were well under Healthy People Initiative targets. Insights into factors associated with vaccination can inform efforts to improve vaccination rates among this population.

Quality Improvement Project to increase pneumococcal vaccination rates in adults with inflammatory bowel diseases (IBD) being treated with immunosuppressants.

Patients with inflammatory bowel diseases (IBD) are at an increased risk of pneumonia, and using immunosuppressive medications further increases this risk. Hospitalized patients with IBD have a significantly higher mortality rate from infections with pneumonia being one of them. The American College of Gastroenterology recommends pneumococcal vaccination for all IBD patients as a part of preventative care for IBD patients. However, compliance rates of pneumococcal vaccination in IBD patients have been very low. Quality improvement projects in this regard have been successful at demonstrating increased immunization rates. Our quality improvement project was aimed at increasing pneumococcal vaccination rates in these adult IBD patients by establishing a process to identify eligible patients in primary care clinics.

Community-Acquired Pneumonia Incidence in Adults Aged 18 Years and Older in Goto City, Japan: A Prospective Population-Based Study

Community-Acquired Pneumonia Incidence in Adults Aged 18 Years and Older in Goto City, Japan: A Prospective Population-Based Study

A Retrospective Study of Pneumococcal Pneumonia in Hospitalized Patients Aged ≥65 Years in Izumo, Japan: 2010 to 2014.

In Japan, both a 23-valent pneumococcal polysaccharide vaccine (PPSV23) and a 13-valent pneumococcal conjugate vaccine (PCV13) are available. Although randomized controlled trials have examined the effects of pneumococcal vaccines, few epidemiological studies have investigated the onset of pneumococcal pneumonia in general practice. In Izumo, Shimane Prefecture, Japan, a public subsidy for PPSV23 inoculation began in November 2012. The subjects were pneumonia patients aged 65 and over who were admitted to a hospital in Izumo. This retrospective study analyzed the following data extracted from medical records: pneumococcal pneumonia prevalence, pneumonia severity, mortality rate, PPSV23 vaccination rate, and length of hospital stay. The 2 years before the start of the public subsidy were defined as the early phase, and the 2 years after the subsidy initiation were defined as the late phase. We compared the two phases in terms of PPSV23 vaccination rate, prevalence and severity of pneumococcal pneumonia, and mortality rate. We investigated data from a total of 1188 and 1086 patients in the early and late phases, respectively. The prevalence of pneumococcal pneumonia was 21.0% and 21.3% in the early and late phases, respectively. The mortality rate from pneumococcal pneumonia was 10.4% and 5.4% in the early and late phases, respectively (p = 0.080), indicating a 50% reduction. The PPSV23 vaccination rate (p < 0.001) and the comorbidity rates of chronic respiratory disease (p = 0.022) and chronic renal disease (p < 0.001) were significantly different between the early and late phases. This study showed that the rate of in-hospital deaths due to pneumococcal pneumonia was halved after the PPSV23 vaccine was subsidized. The causal relationship between the pneumococcal vaccination rate and the mortality rate of pneumococcal disease was unclear. Further investigation is deemed necessary.

Interventions Increase Vaccination Rates in Inflammatory Bowel Disease and Rheumatoid Arthritis: A Systematic Review and Meta-Analysis.

Patients with immune-mediated conditions such as IBD and RA are at risk for vaccine-preventable infections. Despite guideline recommendations, prior studies have shown suboptimal vaccination rates. We conducted a systematic review and meta-analysis to compare the different interventions intended to increase vaccination rates. A systematic search was conducted of MEDLINE/PubMed, Embase, CINAHL, and Cochrane Library up to 2020 for studies with interventions intended to increase vaccination rates. We performed a random-effects meta-analysis to generate pooled odds ratios (ORs) to assess all interventions against no interventions. Our primary outcome was pneumococcal vaccination (PCV) rate. Our review found 8580 articles, for which 15 IBD and 8 RA articles met the inclusion criteria; 21 articles were included in the analysis. PCV was the predominant vaccination (91%). In our analysis of patients with IBD, almost all interventions (patient-oriented, physician-oriented, or barrier-oriented) increased PCV uptake [OR, 4.74; 95% CI, 2.44-6.56, I2 = 90%] compared to no intervention. The greatest effect was seen in barrier-oriented studies [OR, 12.68; 95% CI, 2.21-72.62, I2 = 92%]. For RA data, all interventions had increased PCV uptake compared to no interventions (OR 2.74; 95% CI, 1.80-4.17, I2 = 95%). Our data suggest that many different interventions can increase PCV rates. It appears that barrier-oriented interventions may have the greatest positive effect on increasing PCV uptake. However, clinicians should be encouraged to implement measures best suited to their practice. Future high-quality randomized controlled trials are needed to determine the best approach to optimize vaccination rates.

Rates of Influenza and Pneumococcal Vaccination and Correlation With Survival in Multiple Myeloma Patients.

Infections are a common reason for hospitalization and death in multiple myeloma (MM). Although pneumococcal vaccination (PV) and influenza vaccination (FV) are recommended for MM patients, data on vaccination status and outcomes are limited in MM. We utilized data from the global, prospective, observational INSIGHT MM study to analyze FV and PV rates and associated outcomes of patients with MM enrolled 2016-2019. Of the 4307 patients enrolled, 2543 and 2500 had study-entry data on FV and PV status. Overall vaccination rates were low (FV 39.6%, PV 30.2%) and varied by region. On separate multivariable analyses of overall survival (OS) by Cox model, FV in the prior 2 years and PV in the prior 5 years impacted OS (vs. no vaccination; FV: HR, 0.73; 95% CI, 0.60-0.90; P = .003; PV: HR, 0.51; 95% CI, 0.42-0.63; P < .0001) when adjusted for age, region, performance status, disease stage, cytogenetics at diagnosis, MM symptoms, disease status, time since diagnosis, and prior transplant. Proportions of deaths due to infections were lower among vaccinated versus non-vaccinated patients (FV: 9.8% vs. 15.3%, P = .142; PV: 9.9% vs. 18.0%, P = .032). Patients with FV had generally lower health resource utilization (HRU) versus patients without FV; patients with PV had higher or similar HRU versus patients without PV. Vaccination is important in MM and should be encouraged. Vaccination status should be recorded in prospective clinical trials as it may affect survival. This trial was registered at www. gov as #NCT02761187.

P725 Patients with Immune Mediated Inflammatory Diseases are insufficiently protected against vaccine-preventable influenza and pneumococcal infections due to low vaccination rates

Abstract Background Patients with Immune Mediated Inflammatory Diseases (IMIDs) treated with immunosuppressive drugs are at an increased risk of infections and a more complicated course of the infection, including vaccine-preventable infections. National and international guidelines have specified vaccination strategies in patients with IMIDs. However, the adherence to these guidelines in clinical practice is uncertain. Therefore, we evaluated the current vaccination status of patients with IMIDs at the outpatient clinic of the Erasmus MC Rotterdam. Methods Between August 2022 and October 2022, a survey was sent out to patients with various IMIDs at the rheumatology, dermatology and gastroenterology outpatient clinics. Only patients on immunosuppressive treatment were included. The survey contained questions on patient demographics, disease characteristics and current vaccination status. Results The survey was sent out to 3,345 patients with IMIDs, of whom 1,094 patients filled in the questionnaire (response rate 32.7%). Mean age was 51 ± 16 years and 40.8% were male (Table 1). Patients were treated by a dermatologist (n=306), gastroenterologist (n=414) and/or rheumatologist (n=527). Overall, 55.1% of patients received a yearly influenza vaccination and 9.2% occasionally (Table 2). Furthermore, 8.7% of patients received the pneumococcal vaccination five-yearly and 1.4% occasionally. Both the influenza and pneumococcal vaccination rates were highest in patients with rheumatoid arthritis (64.1%, and 14.7%, respectively). On the contrary, patients with hidradenitis suppurativa had the lowest rates for both the influenza vaccination (32.3%) and pneumococcal vaccination (n=0). Overall, 91.7% of patients (n=1,003) received one or more COVID-19 vaccinations. Conclusion Patients with Immune Mediated Inflammatory Diseases are insufficiently protected against vaccine-preventable infections due to low vaccination rates. Better implementation strategies of current guidelines on seasonal influenza vaccination and pneumococcal vaccination are required. A high rate of COVID-19 vaccination was observed, possibly indicating the willingness of patients to receive vaccinations. Further research into facilitators and barriers to vaccination in these specific patient populations is required.