Ambulation capacity, age, immunosuppression, and mechanical ventilation are risk factors of in-hospital death in severe COVID-19: a cohort study

•Ambulation capacity, race, age, and immunosuppression increase the risk of in-hospital death. How might it impact clinical practice in the future?•People with ambulation disabilities should be treated more carefully when they present the first symptoms of COVID-19, due to the high risk of developing a worse prognosis.•Pandemic control recommendations should include the population with ambulation disability as a priority group in vaccination against COVID-19