ArticleAnnals of internal medicine2022
Influenza Vaccine Uptake and Missed Opportunities Among the Medicare-Covered Population With High-Risk Conditions During the 2018 to 2019 Influenza Season : A Retrospective Cohort Study.
Article in Annals of internal medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
7 citing papers in PubMed, 9 citations in OpenAlex.
- Strengths and limitations of non-survey-based data sources for assessing adult vaccination coverage in the United States.Expert review of vaccines · 2025Review
- Risk of Developing Alzheimer Disease in Relation to Common Infections.Neuro-degenerative diseases · 2025Article
- Attributable Cost of Adult Respiratory Syncytial Virus Illness Beyond the Acute Phase.Open forum infectious diseases · 2024Article
- Rates of Lower Respiratory Tract Illness in US Adults by Age and Comorbidity Profile.Infectious diseases and therapy · 2024Article
- Exploring missed opportunities for influenza vaccination and influenza vaccine co-administration patterns among Italian older adults: a retrospective cohort study.European journal of public health · 2023Article
- Article
- Seasonal influenza vaccine uptake among patients with cardiovascular disease in Denmark, 2017-2019.European heart journal. Quality of care & clinical outcomes · 2023Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
backgroundSeasonal influenza causes substantial morbidity and mortality among older U.S. adults and those with comorbid health conditions.
objectiveTo describe seasonal influenza vaccine uptake and identify factors associated with missed opportunities for influenza vaccination.
designRetrospective cohort study.
settingMedicare fee-for-service claims.
participants31.6 million U.S. adults continuously enrolled under Medicare Parts A and B during the 2018 to 2019 influenza season. MEASUREMENTS: Influenza vaccine uptake and missed opportunities by patient demographic characteristics, high-risk status (that is, ≥1 condition increasing influenza complication risk), Medicare-Medicaid dual-eligibility status, and health care provider visits (that is, vaccination opportunities).
resultsOverall, 50.5% of beneficiaries aged 19 years or older had Medicare claims for influenza vaccination: 31.6% among people aged 19 to 64 years and 54% among people aged 65 years or older. More White beneficiaries were vaccinated (52.9%) than Black (34.9%) or Hispanic (30.4%) beneficiaries. Uptake was higher (56.1%) for beneficiaries with high-risk conditions than for those without (27.6%). Among unvaccinated beneficiaries overall, 77.4% visited a provider during influenza season; among unvaccinated beneficiaries with and without high-risk conditions, 91% and 43%, respectively, had seen a provider at least once. The proportion of beneficiaries with missed opportunities for influenza vaccination was 44.2% and was higher for beneficiaries in the non-high-risk group (59.1%) than those in the high-risk group (42.2%). Uptake was lower and proportions of missed opportunities were higher among beneficiaries in younger age groups, of Black and Hispanic race/ethnicity, without high-risk conditions, or with Medicare-Medicaid dual eligibility. LIMITATIONS: Influenza vaccinations without claims could not be captured. Data on reasons for nonvaccination were unavailable.
conclusionInfluenza vaccination coverage for Medicare beneficiaries continues to be suboptimal, with missed opportunities despite availability of influenza vaccination with no copayment. Disparities persist in vaccination uptake by race/ethnicity. PRIMARY FUNDING SOURCE: None.
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