Fig. 1.

Chronology of coronavirus disease 2019 (COVID-19) registry data types. “Test: T0” indicates the timestamp of a positive PCR test and defines the acute phase of disease in our registry. As depicted, T0 is critical for distinguishing between risk factors (e.g., history of DVT/PE in the pre-infection phase prior to T0) and sequelae of disease (e.g., acute DVT/PE in the acute or recovery phase). RD: Research Derivative, a database of clinical information curated from the EHR at Vanderbilt University Medical Center and restructured for research; T0: chronology of incoming raw data streams ordered with respect to a SARS-CoV-2 PCR test; DOB: Date of birth; COPD: Chronic obstructive pulmonary disease; Meds: Medications; O2: Oxygen; ICU: Intensive Care Unit; PFTs: Pulmonary function tests; PTSD: Post traumatic stress disorder.