Observational Study of Hydroxychloroquine in Hospitalized Patients with Covid-19

Hydroxychloroquine has been widely administered to patients with Covid-19 without robust evidence supporting its use.We examined the association between hydroxychloroquine use and intubation or death at a large medical center in New York City. Data were obtained regarding consecutive patients hospitalized with Covid-19, excluding those who were intubated, died, or discharged within 24 hours after presentation to the emergency department (study...