RT Journal Article T1 Real-Life Impact of Glucocorticoid Treatment in COVID-19 Mortality: A Multicenter Retrospective Study. A1 Muñoz-Gómez, Ana A1 Fernández-Cruz, Ana A1 Lavilla-Olleros, Cristina A1 Giner-Galvañ, Vicente A1 Ausín-García, Cristina A1 Wikman, Philip A1 Bendala-Estrada, Alejandro D A1 Vargas, Juan A A1 Rubio-Rivas, Manuel A1 Laureiro, Jaime A1 Fernández-Bermúdez, Daniel A1 Buonaiuto, Verónica A A1 Arenas de Larriva, Antonio P A1 Pascual-Pérez, María de Los Reyes A1 Alcalá-Pedrajas, José N A1 Labirua-Iturburu Ruiz, Ane A1 Hernández-Milián, Almudena A1 Gómez Del Mazo, Marta A1 Antequera, Beatriz A1 Mella-Pérez, Carmen A1 Navas-Alcántara, María de la Sierra A1 Soto-Delgado, Juan F A1 Gámez-Mancera, Rosa M A1 Sardiña-González, Cristina A1 Meijide-Míguez, Héctor A1 Ramos-Rincón, José M A1 Gómez-Huelgas, Ricardo A1 On Behalf Of The Semi-Covid-Network, K1 COVID-19 K1 SARS-CoV-2 K1 corticosteroids K1 mortality AB We aimed to determine the impact of steroid use in COVID-19 in-hospital mortality, in a retrospective cohort study of the SEMICOVID19 database of admitted patients with SARS-CoV-2 laboratory-confirmed pneumonia from 131 Spanish hospitals. Patients treated with corticosteroids were compared to patients not treated with corticosteroids; and adjusted using a propensity-score for steroid treatment. From March-July 2020, 5.262 (35.26%) were treated with corticosteroids and 9.659 (64.73%) were not. In-hospital mortality overall was 20.50%; it was higher in patients treated with corticosteroids than in controls (28.5% versus 16.2%, OR 2.068 [95% confidence interval; 1.908 to 2.242]; p = 0.0001); however, when adjusting by occurrence of ARDS, mortality was significantly lower in the steroid group (43.4% versus 57.6%; OR 0.564 [95% confidence interval; 0.503 to 0.633]; p = 0.0001). Moreover, the greater the respiratory failure, the greater the impact on mortality of the steroid treatment. When adjusting these results including the propensity score as a covariate, in-hospital mortality remained significantly lower in the steroid group (OR 0.774 [0.660 to 0.907], p = 0.002). Steroid treatment reduced mortality by 24% relative to no steroid treatment (RRR 0.24). These results support the use of glucocorticoids in COVID-19 in this subgroup of patients. SN 2077-0383 YR 2021 FD 2021-10-13 LK https://hdl.handle.net/10668/25893 UL https://hdl.handle.net/10668/25893 LA en DS RISalud RD Apr 17, 2025