Comparative assessment of mortality risk factors between admission and follow-up models among patients hospitalized with COVID-19.

Objectives: This study aimed to compare differences in mortality risk factors between admission and follow-up incorporated models.

Methods: A retrospective cohort study of 524 patients with confirmed COVID-19 infection admitted to a tertiary medical center in São Paulo, Brazil from 13 March to 30 April 2020. Data were collected on admission, and the third, eighth and fourteenth days of hospitalization.