Before revision:  By contrasting the Electronic Health Record (EHR)-derived clinical phenotypes of COVID-19-positive (COVIDpos, n= 272 ) versus COVID-19-negative (COVIDneg, n= 14,695 ) patients over each day of the week preceding the PCR testing date, we identify diarrhea (2.8-fold), change in appetite (2-fold), anosmia/dysgeusia ( 28.6 -fold), and respiratory failure ( 2.1-fold)  as significantly amplified in COVIDpos over COVIDneg patients.
After revision:  By contrasting the Electronic Health Record (EHR)-derived clinical phenotypes of COVID-19-positive (COVIDpos, n= 272 ) versus COVID-19-negative (COVIDneg, n= 14,695 ) patients over each day of the week preceding the PCR testing date, we identify diarrhea (2.8-fold), change in appetite (2-fold), anosmia/dysgeusia ( 37.4 -fold), and respiratory failure ( 2.1-fold) as significantly amplified in COVIDpos over COVIDneg patients.