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Impact of a Catch-Up Strategy of DT-IPV Vaccination during Hospitalization on Vaccination Coverage among People Over 65 Years of Age in France: The HOSPIVAC Study (Vaccination during Hospitalization)

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Department of Infectious Diseases, Le Mans Hospital, 72000 Le Mans, France
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Department of Internal Medecine, Le Mans Hospital, 72000 Le Mans, France
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Department of Nephrology, Le Mans Hospital, 72000 Le Mans, France
*
Author to whom correspondence should be addressed.
Vaccines 2020, 8(2), 292; https://doi.org/10.3390/vaccines8020292
Received: 5 May 2020 / Revised: 29 May 2020 / Accepted: 4 June 2020 / Published: 9 June 2020
(This article belongs to the Special Issue Strategies to Increase Vaccination Coverage and Vaccine Confidence)
In France, diphtheria tetanus and inactivated polio vaccine (DT-IPV) coverage and immunization are insufficient in the elderly and decrease with age. The principal objective of this study was to assess the impact of a strategy of catch-up DT-IPV vaccination during hospitalization in people over the age of 65 years in central France (the Sarthe region). We performed a prospective, single-center, cluster-randomized study (four hospital wards). We included patients aged ≥65 years, without mental impairment, contraindication and who accepted to participate, hospitalized in the internal medicine wards in Le Mans Hospital from 28 May 2018 to 27 May 2019. The DT-IPV vaccination status of the patients was determined at inclusion and the wards were randomized (intervention and control). In the intervention group, vaccination was up-dated during hospitalization. In case of temporary contraindication, vaccination was prescribed at hospital discharge. Patients hospitalized in the control wards received oral information only. Final immunization status was determined by calling the patient’s general practitioner two months after hospital discharge. One hundred and fifty seven patients were included: 73 in the intervention and 84 in the control arm. Baseline immunization coverage was 46.5%. Vaccination coverage increased from 56.2% to 80.8% in the intervention group and from 38.1% to 40.5% in the control group (p < 0.001). Having received sufficient information from the general practitioner was the only factor associated with vaccination being up-to-date in uni- and multivariate analysis: OR = 5.07 [2.45–10.51]. In a setting of low vaccination coverage DT-IPV vaccination during hospitalization is an effective catch-up strategy. View Full-Text
Keywords: vaccination coverage; DT-IPV vaccine; catch-up vaccination; elderly vaccination coverage; DT-IPV vaccine; catch-up vaccination; elderly
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Blanchi, S.; Vaux, J.; Toqué, J.M.; Hery, L.; Laforest, S.; Piccoli, G.B.; Crochette, N. Impact of a Catch-Up Strategy of DT-IPV Vaccination during Hospitalization on Vaccination Coverage among People Over 65 Years of Age in France: The HOSPIVAC Study (Vaccination during Hospitalization). Vaccines 2020, 8, 292.

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