Outcomes

To assess in-hospital and 60-day mortality, abstractors reviewed the medical record 60 days following discharge to determine whether the patient was deceased. If so, date of death and—if available—cause(s) of death were abstracted. If no data were available or the patient appeared to be alive 60 days following discharge, the patient was contacted by phone up to 3 times to obtain additional outcome information. If the telephone respondent noted that the patient had died since hospitalization, they were asked for date and cause of death.

To assess in-hospital and 60-day VTE events, abstractors reviewed the medical record 60 days following discharge to determine whether there was a confirmed or suspected deep vein thrombosis or pulmonary embolism noted in the medical record and, if so, collect related imaging results. Only VTEs confirmed by imaging were considered VTE events. All data were entered into the MI-COVID19 registry using a structured data collection template.