1,25(OH)2-D	1,25-dihydroxyvitamin D
25(OH)D	25-hydroxyvitamin D
aHR	adjusted hazard ratio
BKPyV-DNAemia	BK viremia
BKPyVAN	BK polyomavirus-associated nephropathy
BMI	body mass index
CMV	cytomegalovirus
CNI	calcineurin inhibitor
eGFR	estimated glomerular filtration rate
ESKD	end-stage kidney disease
IVIG	intravenous immunoglobulin
KTRs	kidney transplant recipients
PCR	polymerase chain reaction
PVAN	polyomavirus-associated nephropathy
RH	relative hazard
SD	standard deviation
WisARD	Wisconsin Allograft Recipient Database