Influenza vaccination and its impact on hospitalization events in nursing homes

Public Reporting of Performance Indicators in Long-Term Care in Canada: Does it Make a Difference?

Evidence of the impact of public reporting of health care performance on quality improvement is not yet sufficient for definitive conclusions to be drawn, despite the important policy implications. This study explored the association of public reporting of performance indicators of long-term care facilities in Canada with performance trends. We considered 16 performance indicators in long-term care in Canada, 8 of which are publicly reported at a facility level, whereas the other 8 are not publicly reported, between the fiscal years 2011-2012 and 2018-2019. Data from 1,087 long-term care facilities were included. Improving trends were observed among publicly reported indicators more often than among indicators that were not publicly reported. Our analysis also suggests that the association between publication of data and improvement is stronger among indicators for which there was no improvement prior to publication and among the worst performing facilities.

A Rising Tide Lifts "Related" Boats-Post-Acute Care Quality Improvement is Associated with Improvement in Long-Term Care Quality in Nursing Homes

OBJECTIVES

To examine the relationship between post-acute care (PAC) quality improvement and long-term care (LTC) quality changes.

DESIGN

Observational study using national nursing home data from Nursing Home Compare linked to Brown University's LTCFocus data.

SETTING AND PARTICIPANTS

Free-standing nursing homes serving PAC and LTC residents in the United States.

METHODS

This study used pooled cross-sectional analysis with nursing home-level data from 2005 to 2010 (12,150 unique nursing homes). We used fixed effects models to examine the association between a 1-year change in PAC quality and a 1-year change in LTC quality, with a specific focus on related care domains.

RESULTS

Strong and positive associations were found between related PAC and LTC care domains, particularly between the PAC and LTC influenza vaccination care domains (β = 0.30, P < .001) and the PAC and LTC pneumococcal vaccination care domains (β = 0.55, P < .001). Meanwhile, model results showed PAC quality changes essentially had no associations with unrelated LTC care domains.

CONCLUSIONS AND IMPLICATIONS

This is the first study that examines the association of changes in quality between 2 overlapping but different care domains (ie, PAC and LTC) using multiple quality measures. Our findings indicate that nursing homes can manage concurrent quality improvement in PAC and LTC, particularly on care domains that are related. More research is needed to examine the mechanism that enables such concurrent quality improvement.

A comprehensive framework for considering additional unintended consequences in economic evaluation

Background

In recent years there has been a growth in economic evaluations that consider indirect health benefits to populations due to advances in mathematical modeling. In addition, economic evaluations guidelines have suggested the inclusion of impact inventories to include non-health direct and indirect consequences. We aim to bring together this literature, together with the broader literature on internalities and externalities to propose a comprehensive approach for analysts to identify and characterize all unintended consequences in economic evaluations.

Methods

We present a framework to assist analysts identify and characterize additional costs and effects beyond that of direct health impact primarily intended to be influenced by the intervention/technology. We build on previous checklists to provide analysts with a comprehensive framework to justify the inclusion or exclusion of effects, supporting the use of current guidelines, to ensure any unintended effects are considered. We illustrate this framework with examples from immunization. These were identified from a previous systematic review, PhD thesis work, and general search scoping in PubMed databases.

Results

We present a comprehensive framework to consider additional consequences, exemplified by types and categories. We bring this and other guidance together to assist analysts identify possible unintended consequences whether taking a provider or societal perspective.

Conclusions

Although there are many challenges ahead to standardize the inclusion of additional consequences in economic evaluation, we hope by moving beyond generic statements to reporting against a comprehensive framework of additional effects we can support further consistency in this aspect of cost-effectiveness analysis going forward.

Preexisting subtype immunodominance shapes memory B cell recall response to influenza vaccination

Influenza is a highly contagious viral pathogen with more than 200,000 cases reported in the United States during the 2017-2018 season. Annual vaccination is recommended by the World Health Organization, with the goal to reduce influenza severity and transmission. Currently available vaccines are about 60% effective, and vaccine effectiveness varies from season to season, as well as between different influenza subtypes within a single season. Immunological imprinting from early-life influenza infection can prominently shape the immune response to subsequent infections. Here, the impact of preexisting B cell memory in the response to quadrivalent influenza vaccine was assessed using blood samples collected from healthy subjects (18-85 years old) prior to and 21-28 days following influenza vaccination. Influenza vaccination increased both HA-specific antibodies and memory B cell frequency. Despite no apparent differences in antigenicity between vaccine components, most individuals were biased toward one of the vaccine strains. Specifically, responses to H3N2 were reduced in magnitude relative to the other vaccine components. Overall, this study unveils a potentially new mechanism underlying differential vaccine effectiveness against distinct influenza subtypes.

Influenza vaccination rates before and after admission to nursing homes in Germany

BACKGROUND

Influenza vaccination is highly recommended for nursing home residents. However, it is known that vaccination coverage is low in the general population.

AIMS

We aim to find out whether influenza vaccination coverage differs for nursing home residents between the year before and after admission and factors determining the chance to receive vaccination.

METHODS

Claims data of the health insurance fund DAK of at least 65-year-olds were used. The proportion of residents with influenza vaccination were compared in the year before and after the admission stratified by several covariates. A multivariate logistic regression analysis was conducted to obtain predictors for influenza vaccination after admission.

RESULTS

Vaccination coverage was overall higher in the year after admission (53.0%) than before (38.3%). Differences in vaccination coverage between most covariates evened out after admission. Differences remained for region of residence and number of comorbidities. The strongest predictor for receiving a vaccination after admission was the vaccination status before admission (OR 3.5; 95% CI 3.3-3.6) followed by region and number of comorbidities.

DISCUSSION

Overall, vaccination coverage of nursing home residents remains lower than recommended. Doctor-patient contacts whether due to care for comorbidities or as a continuation of the relation over the time of admission to the nursing home seem to assure vaccination for residents.

CONCLUSION

Clear and unambiguous evidence of vaccine safety and efficacy for different subgroups within the same age group as well as organizational efforts to increase vaccination within nursing homes would be recommended.

Outbreaks of influenza-like illness in long-term care facilities in Winnipeg, Canada

Please cite this paper as: Mahmud et al. (2012) Outbreaks of influenza‐like illness in long‐term care facilities in Winnipeg, Canada. Influenza and Other Respiratory Viruses 10.1111/irv.12052

Background  Outbreaks of influenza‐like illness (ILI) are common in long‐term care facilities (LTCFs) and result in significant morbidity and mortality among residents.

Objectives  We describe patterns of reported ILI outbreaks in LTCFs in Winnipeg, Canada, and examine LTCF and outbreak characteristics that influence the clinical outcomes of these outbreaks.

Methods  We analyzed the electronic records of all ILI outbreaks reported by LTCFs in Winnipeg from 2003 to 2011. Outbreak duration, ILI attack rates among staff and residents, and residents’ death rates were calculated by presumed viral etiology, staff vaccination rates, type of influenza chemoprophylaxis used, and time to notification to public health.

Results  Of a total of 154 reported outbreaks, most (N = 80) were attributed to influenza, and these outbreaks tended to have higher attack and death rates among LTCF residents compared with outbreaks caused by other respiratory viruses (12) or those of unknown etiology (62). About 92% of residents and 38% of staff of the average LTCFs were vaccinated. Chemoprophylaxis was used in 57·5% of influenza outbreaks. Regardless of presumed viral etiology, outbreaks reported within 3 days of onset ended sooner and had lower attack and mortality rates among residents.

Conclusions  Influenza‐like illness outbreaks still occur among highly immunized LTCF residents, so in addition to vaccination of staff and residents, it is important to maintain competent infection control practices. Early identification and notification to public health authorities and possibly early initiation of control measures could improve clinical outcomes of ILI outbreaks.