COVID-19 and Influenza Vaccination Campaign in a Research and University Hospital in Milan, Italy
Abstract
:1. Introduction
2. Materials and Methods
3. Results
3.1. General Analysis
3.2. Analysis of Reasons for Influenza Vaccination
3.3. Newly Vaccinated Analysis
3.4. Influenza and COVID-19 Vaccine Coadministration Analysis
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Healthcare Workers (HCWs) | 2021–2022 | 2020–2021 | 2019–2020 | |||
---|---|---|---|---|---|---|
Internal personnel vaccinated (n) | 1795 | 1816 | 733 | |||
Students, residents, outsourc. personnel vaccinated (n) | 586 | 287 | 420 | |||
Total personnel vaccinated (n) | 2381 | 2103 | 1153 | |||
Overall hospital internal personnel (n) | 3451 | 4213 | 3405 | |||
Vaccination Coverage Rate (VCR) (%) | 52.0 | 43.1 | 21.5 | |||
Gender (n, %) | ||||||
F | 1584 | 66.5 | 1418 | 67.5 | 740 | 64.2 |
M | 797 | 33.5 | 685 | 32.5 | 413 | 35.8 |
Age | ||||||
Median; IQR | 39; 23 | 43; 23 | 36; 25 | |||
18–39 (n, %) | 1204 | 50.6 | 938 | 44.6 | 642 | 55.7 |
40–59 (n, %) | 916 | 38.5 | 925 | 44 | 374 | 32.4 |
>60 (n, %) | 261 | 11.0 | 240 | 11.4 | 137 | 11.9 |
Qualification (n, %) | ||||||
Physician | 603 | 25.3 | 600 | 28.5 | 283 | 24.5 |
Resident | 416 | 17.5 | 219 | 10.4 | 238 | 20.6 |
Nurse | 414 | 17.4 | 452 | 21.5 | 171 | 14.8 |
Student | 83 | 3.5 | 158 | 7.5 | 166 | 14.4 |
Technician | 151 | 6.3 | 155 | 7.4 | 96 | 8.3 |
Auxiliary staff | 100 | 4.2 | 120 | 5.7 | 34 | 2.9 |
Administrative | 196 | 8.2 | 196 | 9.3 | 48 | 4.2 |
Volunteer | 7 | 0.3 | 0 | 0.0 | 16 | 1.4 |
Other | 409 | 17.2 | 203 | 9.7 | 100 | 8.7 |
NA | 2 | 0.1 | 0 | 0.0 | 1 | 0.1 |
Area of activity (n, %) | ||||||
General medicine | 181 | 7.6 | 186 | 8.8 | 226 | 19.6 |
Specialized medicine | 554 | 23.3 | 716 | 34 | 374 | 32.4 |
ICU and Emergency | 193 | 8.1 | 183 | 8.7 | 72 | 6.2 |
General surgery | 69 | 2.9 | 37 | 1.8 | 44 | 3.8 |
Specialized surgery | 172 | 7.2 | 286 | 13.6 | 170 | 14.7 |
Gynecology—Obstetrics * | 174 | 7.3 | - | - | - | - |
Pediatric area | 224 | 9.4 | 245 | 11.7 | 117 | 10.1 |
Newborn area | 125 | 5.2 | 173 | 8.2 | 97 | 8.4 |
Administrative | 212 | 8.9 | 275 | 13.1 | 27 | 2.3 |
Services * | 468 | 19.7 | - | - | - | - |
Other | 0 | 0.0 | 0 | 0.0 | 15 | 1.3 |
NA | 9 | 0.4 | 2 | 0.1 | 11 | 1.0 |
Reason 1 | Reason 2 | Reason 3 | Reason 4 | Reason 5 | Reason 6 | Reason 7 | Reason 8 | Reason 9 | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
“Vaccination Is the Most Effective Strategy of Prevention” | “COVID-19 Pandemic Made Me Aware That Vaccination Is Useful for Myself” | “COVID-19 Pandemic Made Me Aware That Vaccination Is an Act of Responsibility towards the Community” | “COVID-19 Pandemic Made Me Aware of the Danger of Respiratory Infections” | “As HCW I Am More Exposed to the Flu” | “I Fear the Complications of the Flu” | “I Suffer from Diseases at Risk of Complications” | “I Live with Fragile Patients” | “As HCW It’s My Duty to Get Vaccinated to Protect My Patients” | ||||||||||
n, % | 1928 | 81.0 | 197 | 8.3 | 330 | 13.9 | 59 | 2.5 | 373 | 15.7 | 77 | 3.2 | 82 | 3.4 | 174 | 7.3 | 766 | 32.2 |
Gender (n, %) | ||||||||||||||||||
F | 1250 | 78.9 | 123 | 7.8 | 249 | 15.7 | 42 | 2.7 | 243 | 15.3 | 51 | 3.2 | 59 | 3.7 | 132 | 8.3 | 512 | 32.3 |
M | 677 | 84.9 | 74 | 9.3 | 81 | 10.2 | 17 | 2.1 | 130 | 16.3 | 26 | 3.3 | 23 | 2.9 | 42 | 5.3 | 254 | 31.9 |
Age | ||||||||||||||||||
median; IQR | 39; 23 | 44; 22 | 40; 22 | 46; 23.5 | 36; 22 | 47; 22 | 53.5; 13 | 45.5; 21 | 33; 18 | |||||||||
18–39 (n, %) | 997 | 82.8 | 88 | 7.3 | 160 | 13.3 | 22 | 1.8 | 213 | 17.7 | 29 | 2.4 | 14 | 1.2 | 69 | 5.7 | 505 | 41.9 |
40–59 (n, %) | 717 | 78.3 | 88 | 9.6 | 142 | 15.5 | 27 | 2.9 | 119 | 13.0 | 36 | 3.9 | 46 | 5.0 | 89 | 9.7 | 214 | 23.4 |
>60 (n, %) | 214 | 82.0 | 109 | 41.8 | 28 | 10.7 | 10 | 3.8 | 41 | 15.7 | 12 | 4.6 | 22 | 8.4 | 16 | 6.1 | 47 | 18.0 |
Qualification (n, %) | ||||||||||||||||||
Physician | 496 | 82.3 | 46 | 7.6 | 66 | 10.9 | 11 | 1.8 | 112 | 18.6 | 21 | 3.5 | 19 | 3.2 | 36 | 6.0 | 229 | 38.0 |
Resident | 355 | 85.3 | 15 | 3.6 | 37 | 8.9 | 6 | 1.4 | 84 | 20.2 | 6 | 1.4 | 2 | 0.5 | 14 | 3.4 | 223 | 53.6 |
Nurse | 323 | 78.0 | 28 | 6.8 | 53 | 12.8 | 11 | 2.7 | 60 | 14.5 | 9 | 2.2 | 25 | 6.0 | 44 | 10.6 | 155 | 37.4 |
Student | 67 | 80.7 | 11 | 13.3 | 11 | 13.3 | 4 | 4.8 | 16 | 19.3 | 1 | 1.2 | 0 | 0.0 | 7 | 8.4 | 33 | 39.8 |
Technician | 118 | 78.1 | 14 | 9.3 | 23 | 15.2 | 4 | 2.6 | 19 | 12.6 | 8 | 5.3 | 9 | 6.0 | 19 | 12.6 | 36 | 23.8 |
Auxiliary staff | 68 | 68.0 | 5 | 5.0 | 16 | 16.0 | 0 | 0.0 | 22 | 22.0 | 5 | 5.0 | 5 | 5.0 | 10 | 10.0 | 23 | 23.0 |
Administrative | 153 | 78.1 | 34 | 17.3 | 57 | 29.1 | 8 | 4.1 | 16 | 8.2 | 6 | 3.1 | 7 | 3.6 | 20 | 10.2 | 10 | 5.1 |
Volunteer | 5 | 71.4 | 0 | 0.0 | 0 | 0.0 | 1 | 14.3 | 1 | 14.3 | 0 | 0.0 | 0 | 0.0 | 1 | 14.3 | 2 | 28.6 |
Other | 342 | 83.6 | 44 | 10.8 | 67 | 16.4 | 13 | 3.2 | 42 | 10.3 | 21 | 5.1 | 14 | 3.4 | 23 | 5.6 | 55 | 13.4 |
NA | 1 | 50.0 | 0 | 0.0 | 0 | 0.0 | 1 | 50.0 | 1 | 50.0 | 0 | 0.0 | 1 | 50.0 | 0 | 0.0 | 0 | 0.0 |
Area of activity (n, %) | ||||||||||||||||||
General medicine | 150 | 82.9 | 16 | 8.8 | 18 | 9.9 | 5 | 2.8 | 37 | 20.4 | 5 | 2.8 | 3 | 1.7 | 12 | 6.6 | 70 | 38.7 |
Specialized medicine | 445 | 80.3 | 44 | 7.9 | 63 | 11.4 | 13 | 2.3 | 99 | 17.9 | 11 | 2.0 | 18 | 3.2 | 27 | 4.9 | 247 | 44.6 |
ICU and Emergency | 159 | 82.4 | 15 | 7.8 | 22 | 11.4 | 6 | 3.1 | 43 | 22.3 | 7 | 3.6 | 3 | 1.6 | 16 | 8.3 | 68 | 35.2 |
General surgery | 63 | 91.3 | 6 | 8.7 | 10 | 14.5 | 0 | 0.0 | 18 | 26.1 | 0 | 0.0 | 3 | 4.3 | 4 | 5.8 | 16 | 23.2 |
Specialized surgery | 135 | 78.5 | 9 | 5.2 | 17 | 9.9 | 4 | 2.3 | 23 | 13.4 | 2 | 1.2 | 7 | 4.1 | 18 | 10.5 | 73 | 42.4 |
Gynecology—Obst. | 136 | 78.2 | 9 | 5.2 | 28 | 16.1 | 5 | 2.9 | 35 | 20.1 | 8 | 4.6 | 7 | 4.0 | 9 | 5.2 | 61 | 35.1 |
Pediatric area | 178 | 79.5 | 11 | 4.9 | 21 | 9.4 | 3 | 1.3 | 36 | 16.1 | 7 | 3.1 | 8 | 3.6 | 16 | 7.1 | 105 | 46.9 |
Newborn area | 103 | 82.4 | 14 | 11.2 | 19 | 15.2 | 1 | 0.8 | 15 | 12.0 | 4 | 3.2 | 1 | 0.8 | 9 | 7.2 | 56 | 44.8 |
Administrative | 161 | 75.9 | 30 | 14.2 | 56 | 26.4 | 9 | 4.2 | 14 | 6.6 | 13 | 6.1 | 10 | 4.7 | 20 | 9.4 | 12 | 5.7 |
Services | 391 | 83.5 | 42 | 9.0 | 75 | 16.0 | 13 | 2.8 | 51 | 10.9 | 20 | 4.3 | 22 | 4.7 | 43 | 9.2 | 56 | 12.0 |
Other | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
NA | 7 | 77.8 | 1 | 11.1 | 1 | 11.1 | 0 | 0.0 | 2 | 22.2 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 2 | 22.2 |
HCWs | 2021–2022 | 2020–2021 | 2019–2020 | |||
---|---|---|---|---|---|---|
Total vaccinated (n) | 2381 | 2103 | 1153 | |||
Previous vaccination (n, %) | § | # | # | |||
yes | 1834 | 76.7 | 1258 | 59.8 | 777 | 67.4 |
no | 547 | 23.3 | 845 | 40.2 | 376 | 32.6 |
Vaccine Uptake | n | % | Attitude |
---|---|---|---|
Total vaccine uptake | 4165 | ||
Total COVID-19 vaccine uptake | 3526 | 84.7 | |
Total Flu vaccine uptake | 2381 | 67.5 | |
Influenza AND COVID-19 vaccine uptake | |||
COVID-19 + Flu vaccine by co-admin. | 1400 | 33.6 | Fully compliant |
COVID-19 + Flu vaccine separated | 342 | 8.2 | Intentional delayers |
Influenza OR COVID-19 vaccine uptake | |||
Flu vaccine only | 639 | 15.3 | Unintentional delayers |
COVID-19 vaccine only | 1784 | 42.8 | Refusers |
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Lecce, M.; Biganzoli, G.; Agnello, L.; Belisario, I.; Cicconi, G.; D’Amico, M.; De Giorgi, F.; Ferilli, A.; Ferraguzzi, G.; Guzzardi, F.; et al. COVID-19 and Influenza Vaccination Campaign in a Research and University Hospital in Milan, Italy. Int. J. Environ. Res. Public Health 2022, 19, 6500. https://doi.org/10.3390/ijerph19116500
Lecce M, Biganzoli G, Agnello L, Belisario I, Cicconi G, D’Amico M, De Giorgi F, Ferilli A, Ferraguzzi G, Guzzardi F, et al. COVID-19 and Influenza Vaccination Campaign in a Research and University Hospital in Milan, Italy. International Journal of Environmental Research and Public Health. 2022; 19(11):6500. https://doi.org/10.3390/ijerph19116500
Chicago/Turabian StyleLecce, Maurizio, Giacomo Biganzoli, Luca Agnello, Ignazio Belisario, Giovanni Cicconi, Marilena D’Amico, Francesca De Giorgi, Angelo Ferilli, Gaia Ferraguzzi, Fabio Guzzardi, and et al. 2022. "COVID-19 and Influenza Vaccination Campaign in a Research and University Hospital in Milan, Italy" International Journal of Environmental Research and Public Health 19, no. 11: 6500. https://doi.org/10.3390/ijerph19116500