Table 2. Pathologic findings in patients with acute tubular necrosis or interstitial nephritis.

Variables	ATN (n = 116)	AIN (n = 137)	P value
No. of glomerulus	19.9 ± 15.0	24.6 ± 18.8	0.035
Global glomerulosclerosis	7.9 ± 10.4	10.1 ± 11.9	0.155
Tubular atrophy	76 (70.4)	98 (74.2)	0.504
Tubular necrosis	95 (88.0)	86 (65.2)	< 0.001
Interstitial inflammation	86 (79.6)	131 (99.2)	< 0.001
Tubulitis	7 (6.5)	68 (51.5)	< 0.001
Interstitial fibrosis	42 (38.9)	85 (64.9)	< 0.001
Interstitial edema	62 (57.4)	49 (37.1)	0.002
Vascular lesion	34 (31.8)	61 (49.2)	0.007

Data are presented as mean ± standard deviation or number (%).

ATN = acute tubular necrosis, AIN = acute interstitial nephritis.