Table 2.

Patient Demographic information for 36 paired samples (pre- and post-transplant) from 18 kidney transplant recipients (ID).

ID	Sex	Age, years	Race*	ESRD‡	Sample date pre-txp, mos	Sample date post-txp, mos	Calculated Crcl at sample date, mL/min	Donor (living vs. deceased)	Donor age, years	Donor sex	HLA match
1	M	7	1	4	0.1	12	92	LD	43	F	2
2	M	9	1	6	0.6	6	56	DEC	9	F	1
3	M	10	5	3	0.0	48	99	LD	45	M	1
4	F	12	1	2	1.0	28	124	DEC	45	F	0
5	M	14	1	2	0.8	3	107	LD	44	F	4
6	M	19	2	1	0.0	30	141	DEC	25	M	1
7	F	9	4	4	0.6	72	67	LD	24	F	3
8	M	4	2	5	0.9	4	75	DEC	15	M	0
9	M	5	5	1	0.8	6	99	DEC	4	N/A	3
10	M	16	1	4	2.7	23	117	LD	19	M	2
11	F	19	1	3	0.7	9	58	LD	39	M	2
12	M	18	1	4	1.5	18	113	DEC	45	M	3
13	M	4	4	2	0.1	38	117	LD	31	F	6
14	M	17	1	3	0.1	12	86	LD	47	F	2
15	F	1	2	1	0.2	6	107	LD	29	M	6
16	M	9	5	4	0.1	24	138	LD	30	F	3
17	M	13	3	1	0.0	61	77	LD	37	F	2
18	M	14	4	3	0.1	47	136	LD	45	M	0

Mean age of the patients at transplantation was 11.0 ± 5.5 (range 1–19 years). Twenty-two percent of patients were female, and 67% patients received a kidney from a living donor. The pre-transplant serum samples were collected between August 2001 and April 2006, at 0.6 ± 0.7 (range 0–2.7) months prior to the time of transplantation. The post-transplant serum samples were collected between February 2004 and November 2006, at 24.8 ± 20.8 (range 3–72 months) months after transplantation, as part of the routine follow-up after transplantation. Numerical classification for race and cause of end stage renal disease (ESRD) is shown below. The sample date is shown in months (mos) and the calculated creatinine clearance (CrCl) is based on the Schwartz formula (35).

*1, Caucasian; 2, Hispanic; 3, Asian; 4, African American; 5, other.

^†1, glomerulonephritis; 2, polycystic kidney disease; 3, dysplasia; 4, reflux nephropathy; 5, obstructive uropathy; 6, other.