RT Journal Article T1 Importance of Vaccination against SARS-CoV-2 in Patients with Interstitial Lung Disease Associated with Systemic Autoimmune Disease. A1 Mena-Vazquez, Natalia A1 Garcia-Studer, Aimara A1 Rojas-Gimenez, Marta A1 Romero-Barco, Carmen Maria A1 Manrique-Arija, Sara A1 Mucientes, Arkaitz A1 Velloso-Feijoo, Maria Luisa A1 Godoy-Navarrete, Francisco Javier A1 Morales-Garrido, Pilar A1 Redondo-Rodriguez, Rocio A1 Ordoñez-Cañizares, M C A1 Ortega-Castro, Rafaela A1 Lisbona-Montañez, Jose Manuel A1 Hidalgo Conde, Ana A1 Arnedo Diez de Los Rios, Rocio A1 Cabrera Cesar, Eva A1 Espildora, Francisco A1 Aguilar-Hurtado, Maria Carmen A1 Añón-Oñate, Isabel A1 Ureña-Garnica, Inmaculada A1 Fernandez-Nebro, Antonio K1 SARS-CoV-2 infections K1 Interstitial lung disease (ILD) K1 Systemic autoimmune disease (SAD) K1 Vaccination COVID-19 K1 Área de Gestión Sanitaria Sur de Sevilla AB Objectives: To describe the frequency of COVID-19 and the effect of vaccination in patients with interstitial lung disease and systemic autoimmune disease (ILD-SAD) and to identify factors associated with infection and severity of COVID-19. Methods: We performed a cross-sectional multicenter study of patients with ILD-SAD followed between June and October 2021. The main variable was COVID-19 infection confirmed by a positive polymerase chain reaction (PCR) result for SARS-CoV-2. The secondary variables included severity of COVID-19, if the patient had to be admitted to hospital or died of the disease, and vaccination status. Other variables included clinical and treatment characteristics, pulmonary function and high-resolution computed tomography. Two logistic regression was performed to explore factors associated with “COVID-19” and “severe COVID-19”. Results: We included 176 patients with ILD-SAD: 105 (59.7%) had rheumatoid arthritis, 49 (27.8%) systemic sclerosis, and 22 (12.54%) inflammatory myopathies. We recorded 22/179 (12.5%) SARS-CoV-2 infections, 7/22 (31.8%) of them were severe and 3/22 (13.22%) died. As to the vaccination, 163/176 (92.6%) patients received the complete doses. The factors associated with SARS-CoV-2 infection were FVC (OR (95% CI), 0.971 (0.946−0.989); p = 0.040), vaccination (OR (95% CI), 0.169 (0.030−0.570); p = 0.004), and rituximab (OR (95% CI), 3.490 (1.129−6.100); p = 0.029). The factors associated with severe COVID-19 were the protective effect of the vaccine (OR (95% CI), 0.024 (0.004−0.170); p< 0.001) and diabetes mellitus (OR (95% CI), 4.923 (1.508–19.097); p = 0.018). Conclusions: Around 13% ofpatients with ILD-SAD had SARS-CoV-2 infection, which was severe in approximately one-third. Most patients with severe infection were not fully vaccinated. PB MDPI SN 2077-0383 YR 2022 FD 2022-04-24 LK http://hdl.handle.net/10668/21278 UL http://hdl.handle.net/10668/21278 LA en NO Mena-Vázquez N, García-Studer A, Rojas-Gimenez M, Romero-Barco CM, Manrique-Arija S, Mucientes A, et al. Importance of Vaccination against SARS-CoV-2 in Patients with Interstitial Lung Disease Associated with Systemic Autoimmune Disease. J Clin Med. 2022 Apr 26;11(9):2437 DS RISalud RD Apr 17, 2025