Table 2.

Patient and donor characteristics used in Classification and Regression Tree (CART) analysis.

	Selected levels
Donor Characteristics
Age	20, 35, 50
Gender	female, male
Race	Caucasian, African-American, Hispanic, other
HLA mismatches	0, 1, 2, 3, 4, 5, 6
Smoking history	yes, no
Candidate Characteristics
Age	1, 3, 7, 12, 17
Gender	female, male
Race	Caucasian, African-American, Hispanic, other
Previous dialysis months	0, 6, 12, 24
Previous transplant	yes, no
Etiology of renal disease	FSGS, other glomerular, CAKUT, other
Peak PRA	0–5%, 6–80%, 81–95%, 96–100%
ABO blood type	A, B, AB, O
Estimated Deceased Donor Wait
Pediatric (months)	3, 12
Adult (months)	12, 48

FSGS = focal segmental glomerular sclerosis, CAKUT = congenital anomalies of the kidneys and urinary tract, PRA = panel reactive antibody