TABLE I.

Demographics of study participants

	De novo AIH (n=21)	LTC (n=27)	HC (n=28)	P value
Age at blood draw mean ± SD (years)	14.87 ± 4.60	10.48 ± 6.24	8.98 ± 5.28	HC vs. LTC 0.3 HC vs. DAIH 0.002 LTC vs. DAIH 0.04
Gender (m/f)	11/10	18/9	13/15	0.3
Duration from transplant at blood draw mean ± SD (days)	4149.76 ± 1938.75	3261.80 ± 2363.39	n/a	0.2
Duration from transplant at de novo diagnosis mean ± SD (days)	2142.65 ± 1175.85	n/a	n/a
Pre transplant diagnosis: Biliary atresia Other	13 8	17 10	n/a	0.9
CNI trough level at blood draw mean ± SD ( )	4.74 ± 1.88	3.39 ± 2.75	n/a	0.2

AIH: Autoimmune hepatitis

LTC: Liver transplanted control

HC: Healthy control

CNI: Calcineurin inhibitor