Geleris, Dr. JoshuaSun, Dr. YifeiThe Supplementary Index contains information including the demographics of the clinical trial. The only races/ ethnicities identified are Non- Hispanic Whites, Non- Hispanic Blacks, and Hispanics.Hydroxychloroquine has been widely administered to patients with Covid-19 without robust evidence supporting its use. In this observational study involving patients with Covid-19 who had been admitted to the hospital, hydroxychloroquine administration was not associated with either a greatly lowered or an increased risk of the composite end point of intubation or death. Randomized, controlled trials of hydroxychloroquine in patients with Covid-19 are needed.en-USCOVID-19Clinical TrialsDemographicsHealth DisparitiesOther