Unadjusted and multivariable adjusteda logistic regression models of the association between anti-SARS-CoV-2-seropositive status and (A) out-of-hospital exposures,b (B) occupation group,c and (C) clinical care tasks.d aMultivariable adjustment including age, race/ethnicity, and gender (red) or age, race/ethnicity, gender, and variable for nonhospital exposure (blue). bOut-of-hospital exposures: For the question on whether the participant reported a family member having a COVID-19 test, the reference group is family did not have a test. For the question on whether the participant reported an exposure to COVID-19 outside the hospital, no reported nonhospital exposure is the reference. cThe reference group for occupations is administrators. dFor the question on whether the participant reported exposure to a patient with COVID-19, the reference is no exposure to a patient with COVID-19. For the question on whether a participant conducted a procedure or a specific procedure, the reference is no or not that specific procedure. Abbreviations: CLP, central line placement; COVID-19, coronavirus disease 2019; PT/OT, physical therapy/occupational therapy; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; TEE, transesophageal echocardiography; TTE, transthoracic echocardiography.