Influenza vaccine coverage in 6months-64 years-old patients affected by chronic diseases: A retrospective cohort study in Italy

Bianchi, Francesco Paolo; Stefanizzi, Pasquale; Cuscianna, Eustachio; Lorenzo, Antonio Di; Migliore, Giovanni; Tafuri, Silvio; Germinario, Cinzia Annatea

doi:10.1080/21645515.2022.2162301

Cited by 5 publications

(11 citation statements)

References 25 publications

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“…Twice as high VURs are reported in chronic obstructive pulmonary disease (COPD) patients, 39 and VUR in Swiss nursing homes was up to 63% 40 . At the international level, our findings are similar to VUR reported in Germany or Italy 41–43 …”

Section: Discussionsupporting

confidence: 84%

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Influenza vaccination uptake among at‐risk patients in Switzerland—The potential of national claims data for surveillance

Plate,

Bagnoud,

Rosemann

et al. 2023

Influenza Resp Viruses

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BackgroundSwiss national surveillance of influenza vaccination uptake rates (VURs) relies on self‐reported vaccination status. The aim of this study was to determine VURs among at‐risk patients, namely, patients ≥65 of age and adult patients with chronic diseases, using claims data, instead of self‐reported measures, to investigate factors of vaccine uptake, and to assess different methodological approaches to conduct vaccination surveillance.MethodsIn this retrospective cross‐sectional analysis, we determined VURs in three influenza seasons (2015/2016–2017/2018). Medication, diagnosis, or medical services claims were used as triggers to identify patients. For the calculation of VURs in patients with chronic diseases, we identified those by triggers in the given season only (Model 1) and in the given and previous seasons (Model 2). Regression analysis was used to identify factors associated with vaccination status.ResultsData from 214,668 individual patients were analyzed. VURs over all seasons ranged from 18.4% to 19.8%. Most patients with chronic diseases were identified with the medication trigger, and we found no clinical significant differences in VURs comparing both models. Having a chronic disease, age, male gender, and regular health care provider visits were associated with increased odds of being vaccinated.ConclusionsVURs were below the recommended thresholds, and our analysis highlighted the need for efforts to increase VURs. We assessed the identification of chronic diseases by medication claims and the calculation of VURs based on data of the given season only as an effective approach to conduct vaccination surveillance. Claims data‐based surveillance may complete the national surveillance.

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Section: Discussionsupporting

confidence: 84%

“…40 At the international level, our findings are similar to VUR reported in Germany or Italy. [41][42][43]…”

Section: Vaccination Uptakementioning

confidence: 99%

Influenza vaccination uptake among at‐risk patients in Switzerland—The potential of national claims data for surveillance

Plate,

Bagnoud,

Rosemann

et al. 2023

Influenza Resp Viruses

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“…Previous studies on cirrhotic patients in Italy have reported low VC rates, with an overall VC of 39.6% in 2019, lower in people younger than 65 years of age (26.9%) compared to those 65 years and older (51.9%; p -value < 0.001) ( 9 ). Another study published in 2023 reported a VC of 24.0% among Apulian patients with liver disease aged 6 months to 64 years during the 2020/21 flu season ( 10 ). A study in Austria conducted in 2021 on 516 patients found that 43.9% of them expressed willingness to be vaccinated before the 2020/2021 flu season, compared to VC rates of 25.4 and 27.3% in the 2019/2020 and 2016/2018 flu seasons, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…The study population was identified using the archive of hospital discharge forms (SDO) from Castellana Grotte “De Bellis” research and treatment hospital specializing in gastroenterological diseases. This database contains all information on hospital and inpatient procedures ( 10 ). We included all records related to cirrhosis (ICD9 codes 571.5, 571.2), liver disease (ICD9 codes: 571.49, 573.3, 570, 571.1, 070.1, 070, 571.49, 571.40, 573.3, 573.8, 572.0), hemochromatosis (ICD9 code: 275.0), Pompe disease (ICD9 code: 271.0), alpha-1 antitrypsin deficiency (ICD9 code: 273.4), steatosis (ICD9 code: 571.8), Wilson’s disease (ICD9 code: 275.1), Budd-Chiari syndrome (ICD9 code: 453.0), and hepato-cholangio- carcinoma (ICD9 codes: 155.0, 155.1), extending our search to all procedures performed from 2017 to 2022.…”

Section: Methodsmentioning

confidence: 99%

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Prevention of influenza complications in patients with liver disease: a retrospective cohort study

Bianchi,

Losito,

Labarile

et al. 2023

Front. Public Health

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IntroductionPatients with chronic liver disease are highly prone to acquiring influenza infection diseases and experiencing associated complications. National and international guidelines recommend the influenza vaccine for patients with liver disorders to reduce the risk of influenza complications. Our study aims to evaluate the risk of flu complications faced by patients with liver disease and assess influenza vaccination coverage.MethodsThe archive of hospital discharge forms was used to define the list of Apulian patients with liver disease, considering data from 2017 through 2022. The vaccination status of these patients was assessed via data collected from the Regional Immunization Database. We focused on influenza vaccine shots administered during the 2020/21, 2021/22, and 2022/23 flu seasons.ResultsA declining trend across the flu seasons was observed, with a VC of 49.5% in the 2020/21 flu season, 48.1% in the 2021/22 season, and 45.0% in the 2022/23 season. Subjects with multiple comorbidities have higher vaccination rates. Additionally, the multivariate models demonstrate that vaccination compliance increases with age and is strongly associated with having received a previous influenza vaccine shot.ConclusionThe VC rates reported in our study are unsatisfactory and did not reach the minimum achievable goal (75%) the Italian Ministry of Health set. A multifactorial approach is required to raise the immunization rates and therefore protect the patients from the influenza-associated risk of collateral liver damage; the role of gastroenterologists and hepatologists is crucial, as their responsibilities should extend beyond patient care to the prevention of complications after infectious diseases.

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Impact of COVID-19 pandemic on flu vaccine uptake in healthcare workers in Europe: a systematic review and meta-analysis

Bianchi,

Cuscianna,

Rizzi

et al. 2023

Expert Review of Vaccines

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Influenza vaccine coverage in 6months-64 years-old patients affected by chronic diseases: A retrospective cohort study in Italy

Cited by 5 publications

References 25 publications

Influenza vaccination uptake among at‐risk patients in Switzerland—The potential of national claims data for surveillance

Influenza vaccination uptake among at‐risk patients in Switzerland—The potential of national claims data for surveillance

Prevention of influenza complications in patients with liver disease: a retrospective cohort study

Impact of COVID-19 pandemic on flu vaccine uptake in healthcare workers in Europe: a systematic review and meta-analysis

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