Table 1.

Patient Characteristics

	Total (n = 144)
	Median	Range
Age at testing (years)	6.26	5.01 – 6.99
Age at LT (years)	1.19	0.07 – 4.75
Interval from LT (years)	4.87	2.03 – 6.68
PELD score at LT (9% missing)	16.30	−9.69 – 46.58
Height Z score at LT	−1.71	−7.80 – 6.08
Weight Z score at LT	−1.28	−8.94 – 2.19
INR at LT	1.3	0.8 – 6.1
Albumin at LT (g/dL)	3.1	1.5 – 4.8
Total Bilirubin at LT (mg/dL)	11.1	0.0 – 58.0
Total Bilirubin at testing (mg/dL)**	0.5	0.1 – 5.6
Albumin at testing (g/dL)**	4.2	2.8 – 5.1
	N	%
Female	83	58%
Race
White	84	58%
Black	21	15%
Hispanic	21	15%
Other or missing (n=1)	18	12%
Primary Diagnosis
Biliary Atresia	84	58%
Acute Liver Failure	14	10%
Other cholestatic	20	14%
Metabolic*	14	10%
Other	12	8%
Status at transplant
ICU	30	21%
Hospitalized	21	15%
Home	93	65%
Number of Liver transplants
1	137	95%
2	6	4%
3	1	1%
Initial immunotherapy***
Cyclosporine	31	22%
Tacrolimus	94	65%
Induction therapy
None	100	69%
Yes	44	31%
Total number of rejection episodes
0	60	42%
1	52	36%
2 – 7	32	22%

^*Metabolic diagnosis included Urea cycle defects (n=2), Wilson’s disease (n=0), alpha-1-anti-trypsin deficiency (n=3), Tyrosinemia (n=2), Neonatal Hemachromatosis (n=1), Inborn error in bile acid metabolism (n=1), other metabolic (n=5)

^**Values missing on 5% of cohort

^***Values missing on 13% of cohort