Noseda, Roberta Ripellino, Paolo Ghidossi, Sara Bertoli, Raffaela Ceschi, Alessandro 2021-09-14 Since marketing authorization, cases of neuralgic amyotrophy (NA), facial paralysis/Bell’s palsy (FP/BP), and Guillain-Barré syndrome (GBS) were reported with COVID-19 vaccines of different technologies. This study aimed to assess whether NA, FP/BP, and GBS were more frequently reported in VigiBase with COVID-19 vaccines (of any technologies) than with other viral vaccines, over the full database and across potential risk groups by sex and age. The reporting odds ratio (ROR) with 95% confidence interval (95% CI) was used as the measure of disproportionality and subgroup disproportionality analyses were performed by sex and age. Out of 808,906 safety reports with COVID-19 vaccines, 57 (0.01%) reported NA, 3320 (0.4%) FP/BP, and 632 (0.1%) GBS. There were not signals of disproportionate reporting for NA and GBS with COVID-19 vaccines against other viral vaccines. FP/BP was disproportionately more frequently reported with COVID-19 vaccines than with other viral vaccines over the full database (ROR 1.12, 95%CI 1.07–1.17), in males (ROR 1.65, 95%CI 1.54–1.78) and in age subgroups 65–74 years (ROR 1.21, 95%CI 1.05–1.39) and ≥75 years (ROR 1.84, 95%CI 1.52–2.22). Albeit not proving causation, these findings might support clinicians in decision-making for patients potentially at risk for developing an acute inflammatory neuropathy with COVID-19 vaccines. application/pdf https://susi.usi.ch/global/documents/319331 https://n2t.net/ark:/12658/srd1319331 https://susi.usi.ch/documents/319331/files/Ceschi_v_2021.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.3390/vaccines9091022 info:eu-repo/semantics/altIdentifier/ark/12658/srd1319331 info:eu-repo/semantics/openAccess CC BY Vaccines / Siddappa, N.. - MDPI. - 2021, vol. 9, no. 9, p. 7 Acute inflammatory neuropathy COVID-19 vaccines VigiBase Safety Disproportionality info:eu-repo/classification/udc/61 Reporting of acute inflammatory neuropathies with COVID-19 vaccines : subgroup disproportionality analyses in VigiBase http://purl.org/coar/resource_type/c_6501