PMID- 34982462 OWN - NLM STAT- MEDLINE DCOM- 20220111 LR - 20220111 IS - 2284-0729 (Electronic) IS - 1128-3602 (Linking) VI - 25 IP - 24 DP - 2021 Dec TI - Host factors and history of SARS-CoV-2 infection impact the reactogenicity of BNT162b2 mRNA vaccine: results from a cross-sectional survey on 7,014 workers in healthcare. PG - 7985-7996 LID - 27649 [pii] LID - 10.26355/eurrev_202112_27649 [doi] AB - OBJECTIVE: This study aimed to improve the post-marketing surveillance on mRNA anti-SARS-CoV-2 vaccines, characterizing the adverse events (AEs) after the first dose of mRNA BNT162b vaccine. The associations between the AEs and individuals' characteristics were explored. PATIENTS AND METHODS: All adult healthcare workers at Niguarda Hospital (Milan, Italy) who were referred for the first dose of vaccine were offered to participate in a cross-sectional survey during the second-dose administration, between 18 January and 7 February 2021. All participants completed a questionnaire about age, gender, weight, height, medical history, concurrent therapies, employment status, previous diagnosis/testing for SARS-CoV-2 infection, and a list of 24 AEs (solicited AEs). The development of at least one solicited AEs was the main outcome. AEs were stratified by the presence of injection-site symptoms, systemic symptoms or both, and the differences between strata were assessed as a secondary outcome. Biometric data and reports of a previous diagnosis of SARS-CoV-2 infection were also explored, as predictors of the main outcome. RESULTS: 7,014 healthcare workers were included. An incidence of 3 per 10.000 persons for serious AEs following the first administration of the mRNA BNT162b vaccine was found. An association between the development of non-serious AEs with young age, female gender, low body mass index, and previous history of SARS-CoV-2 was described. CONCLUSIONS: This real-life study supported data on the safety profile of the BNT162b2 mRNA vaccine. Our findings on the associations between the development of non-serious AEs with some individual characteristics may help physicians and patients make educated and informed medical decisions towards anti-COVID-19 vaccination. FAU - Ughi, N AU - Ughi N AD - Multispecialist Medical Department, Division of Rheumatology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy. nicola.ughi@ospedaleniguarda.it. FAU - Del Gaudio, F AU - Del Gaudio F FAU - Dicuonzo, A AU - Dicuonzo A FAU - Orso, M AU - Orso M FAU - Micheloni, G AU - Micheloni G FAU - Puoti, M AU - Puoti M FAU - Pani, A AU - Pani A FAU - Scaglione, F AU - Scaglione F FAU - Zoppini, L AU - Zoppini L FAU - Rossetti, C AU - Rossetti C FAU - Epis, O M AU - Epis OM FAU - Bellavia, G AU - Bellavia G FAU - Giroldi, S AU - Giroldi S FAU - Moreno, M AU - Moreno M FAU - Bosio, M AU - Bosio M LA - eng PT - Journal Article PL - Italy TA - Eur Rev Med Pharmacol Sci JT - European review for medical and pharmacological sciences JID - 9717360 RN - N38TVC63NU (BNT162 Vaccine) SB - IM MH - Adult MH - Age Factors MH - BNT162 Vaccine/administration & dosage/*adverse effects MH - COVID-19/epidemiology/immunology/*prevention & control/virology MH - Cross-Sectional Studies MH - Female MH - Health Personnel/statistics & numerical data MH - Humans MH - Male MH - Medical History Taking/statistics & numerical data MH - Middle Aged MH - Product Surveillance, Postmarketing/statistics & numerical data MH - Risk Factors MH - SARS-CoV-2/immunology MH - Sex Factors MH - Vaccination/*adverse effects/statistics & numerical data EDAT- 2022/01/05 06:00 MHDA- 2022/01/12 06:00 CRDT- 2022/01/04 12:42 PHST- 2022/01/04 12:42 [entrez] PHST- 2022/01/05 06:00 [pubmed] PHST- 2022/01/12 06:00 [medline] AID - 27649 [pii] AID - 10.26355/eurrev_202112_27649 [doi] PST - ppublish SO - Eur Rev Med Pharmacol Sci. 2021 Dec;25(24):7985-7996. doi: 10.26355/eurrev_202112_27649.