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Objective: To determine clinical outcomes and mortality risk factors related to mental disorders in a cohort of hospitalized patients with Covid-19 in Brazil. Methods: This retrospective cohort study used a Brazilian database called the Sistema de Vigilância Epidemiológica da Gripe (Influenza Epidemiological Surveillance System) to analyze patients aged ≥ 18 years who were hospitalized with Covid-19 between 2020 and 2022. The exposure of interest was mental disorders (anxiety, depression, schizophrenia, and bipolar disorder) identified through self-report. The primary outcome was in-hospital mortality. Covariates included demographic and clinical characteristics. Descriptive statistics, t-tests, chi-square tests, and binary logistic regression were used to analyze the data. Results: A cohort of 2,124,285 patients was included in the analysis, with 23,246 individuals (1.1%) self-reporting mental disorders, of which depression was the most prevalent (52.3%). The mortality rate of patients with mental disorders was 30.8%. Age, sex, region, dyspnea, low oxygen saturation, and comorbidities were associated with a higher mortality risk, as was schizophrenia (adjusted OR: 1.68; 95%CI 1.54-1.81). Conclusions: Individuals with schizophrenia had a greater likelihood of Covid-19-related death than those without mental health conditions. These findings underscore the significant effect of serious mental disorders on Covid-19 mortality. Objective Covid19 Covid 19 Covid-1 Brazil Methods Influenza System 1 202 2022 anxiety, anxiety (anxiety disorder selfreport. selfreport self report. report self-report inhospital hospital characteristics statistics ttests, ttests t tests t-tests chisquare chi square data Results 2124285 2 124 285 2,124,28 analysis 23246 23 246 23,24 1.1% 11 (1.1% selfreporting reporting 52.3%. 523 52.3% . 52 3 (52.3%) 308 30 8 30.8% Age sex region dyspnea saturation adjusted OR 1.68 168 68 95CI CI 95 1.541.81. 154181 1.54 1.81 54 81 1.54-1.81) Conclusions Covid19related Covidrelated conditions Covid1 Covid- 20 212428 12 28 2,124,2 2324 24 23,2 1.1 (1.1 52.3 5 (52.3% 30.8 1.6 16 6 9 541 1.541.81 15418 154 1.5 181 1.8 1.54-1.81 21242 2,124, 232 23, 1. (1. 52. (52.3 30. 1.541.8 1541 15 1.54-1.8 2124 2,124 (1 (52. 1.541. 1.54-1. 212 2,12 ( (52 1.541 1.54-1 21 2,1 (5 1.54- 2,