TABLE 2.

Biopsy findings of the patient cohort

	AMR	Mixed	ACR	ATN
Histopathology classification (no. of cases)	32	20	16	12
Acute active rejection	29	19	16	0
Chronic active rejection	3	1	0	0
Chronic inactive rejection	0	0	0	0
Histopathology features, median (IQR)
i	0 (0–0.75)	2 (1.7–3)	2 (1.7–2)	0 (0–0)
t	0 (0–0)	2 (2–3)	3 (2.7–3)	0 (0–0)
ti	0 (0–1)	2 (2–3)	2 (2–3)	0 (0–0)
g	1 (0–2)	0 (0–2)	0 (0–0)	0 (0–0)
ptc	0.5 (0–1.75)	2 (1–2)	1 (0–1)	0 (0–0)
cg	0 (0–0)	0 (0–0)	0 (0–0)	0 (0–0)
mm	0 (0–0)	0 (0–0)	0 (0–0)	0 (0–0)
v	0 (0–0)	1 (0–1)	0 (0–0)	0 (0–0)
ci	0 (0–0)	1 (0–1)	1(0–1)	0 (0–0)
ct	0 (0–0)	1 (0–1)	1 (0.7–1)	0 (0–1)
ah	0 (0–1)	1 (0–1)	0 (0–1)	0 (0–0)
cv	0 (0–2)	1 (0–1.5)	1 (0–1.7)	1 (0–1)
C4d	3 (3–3)	3 (2–3)	0 (0–0)	0 (0–0)
Globally sclerosed glomeruli (%)	3.8 (0–7.5)	5 (0–11.3)	4 (0–10.8)	4 (0–6.3)

Histopathology lesions were evaluated according to the most updated Banff classification.

ACR, acute cellular rejection; ah, arteriolar hyalinosis; AMR, antibody-mediated rejection; ATN, acute tubular necrosis; c4d, c4 deposition; cg, chronic glomerulopathy; ci, interstitial fibrosis; ct, tubular atrophy; cv, vascular fibrous intimal thickening; g, glomerulitis; i, interstitial inflammation; IQR, interquartile range; mm, mesangial matrix expansion; ptc, peritubular capillaritis; t, tubulitis; ti, total inflammation; v, intimal arteritis.