Association between vaccination and persistent COVID-19-related symptoms among patients with mild Omicron infection: A prospective cohort study.

Background: While COVID-19 vaccination has been shown to reduce the risk of severe illness, its impact on the occurrence of persistent symptoms in patients with mild Omicron infection remains uncertain. Our objective was to investigate whether COVID-19 vaccination reduces the occurrence of persistent COVID-19-related symptoms 3 months after mild Omicron infection.

Methods: Multicenter prospective cohort study was conducted in Brazil between January 2022 and June 2023 when Omicron was predominant.

Impact on pulmonary, cardiac, and renal function and long-term quality of life after hospitalization for acute respiratory distress syndrome due to COVID-19: Protocol of the Post-COVID Brazil 3 study.

Rationale: Evidence about long-term sequelae after hospitalization for acute respiratory distress syndrome due to COVID-19 is still scarce.

Purpose: To evaluate changes in pulmonary, cardiac, and renal function and in quality of life after hospitalization for acute respiratory distress syndrome secondary to COVID-19.

Methods: This will be a multicenter case-control study of 220 participants.

Long-term Health-Related Quality of Life and Outcomes after Hospitalization for COVID-19 in Brazil: Post-COVID Brazil 1 Study Protocol.

Background: The long-term impact of hospitalization for COVID-19 on patients' physical, mental, and cognitive health still needs further assessment.

Objectives: This study aims to evaluate factors associated with quality of life and cardiovascular and non-cardiovascular outcomes 12 months after hospitalization for COVID-19.

Methods: This prospective multicenter study intends to enroll 611 patients hospitalized due to COVID-19 (NCT05165979).

Assessment of cognitive functioning using the Mini Mental State Examination in men with Alcohol and Crack Cocaine Use Disorder.

Introduction: Consumption of substances has been associated with cognitive impairment. The Mini Mental State Examination (MMSE) is an easy-to-apply screening tool used to assess cognitive functions.

Objectives: To evaluate the cognitive performance of individuals with alcohol (AUD) and/or crack cocaine use disorder (CUD) and polysubstance use using the MMSE and to investigate the impact of substance use profile and the moderation effect of educational level on MMSE performance.