Table II Histopathology of allograft biopsies of the training set and validation set

IF/TA, IF/TA with no other etiology. Transplant biopsies were normal in stable renal recipients.

	Training set (mean ± S.D.)		Validation set (mean ± S.D.)
	IF/TA group (n = 8)	CAAR group (n = 10)	IF/TA group (n = 10)	CAAR group (n = 11)
Glomerular double contours (cg)	0	1.89 ± 0.7^a	0	1.82 ± 0.75^a
Interstitial fibrosis (ci)	1.88 ± 0.9	2.11 ± 0.7^b	1.9 ± 0.56	2.18 ± 0.6^b
Tubular atrophy (ct)	1.88 ± 0.9	2.11 ± 0.7^b	1.9 ± 0.56	2.18 ± 0.6^b
Arterial fibrous intimal thickening (cv)	0.88 ± 0.6	1.56 ± 1.0^a	1.6 ± 0.69	1.36 ± 0.67^a
Hyaline arteriolar thickening (ah)	0.75 ± 1.1	1.56 ± 1.1^b	1.5 ± 0.7	1.73 ± 0.46^b
Peritubular capillaritis (ptc)	0.75 ± 0.4	1.33 ± 0.7^b	0.4 ± 0.69	1.64 ± 0.5^a