The association of COVID‐19 antibody with in‐hospital outcomes in COVID‐19 infected patients

We aimed to investigate whether hospitalizations of patients who tested positive for coronavirus disease 2019 (COVID‐19) antibodies are associated with reduced in‐hospital mortality. Of the 2459 patients admitted due to COVID‐19 and tested for antibodies, 937 (38.1%) had positive tests. After adjustment for patient characteristics and treatments, patients with positive COVID‐19 antibody test had lower in‐hospital mortality compared with those...