Variables
Variables of interest included demographic (age, sex, race, ethnicity),
clinical (immunocompromising condition, chemotherapy phase, test
indication and location), laboratory data (absolute neutrophil count
[ANC], absolute lymphocyte count [ALC] within 72 hours of
initial test), microbiologic data (sources, dates and results of SARS
-CoV-2 testing) and immunocompromising medication (name, class, therapy
phase). We defined low ANC or ALC as a level <1000 cells/uL,
and moderately low ANC or ALC as a level of 1000-1500 cells/uL.