Table 2. Prevalence of histological abnormalities detected at time of kidney donation among living kidney donors.

Five types of histological abnormalities were identified at time of kidney donation: glomerulosclerosis (gs), interstitial fibrosis and tubular atrophy (IFTA), mesangial matrix increase (mm), arteriolar hyalinosis (ah), and vascular fibrous intimal thickening (cv).

Histological Abnormalities (n=310)	n (%)
glomerulosclerosis (gs)
<10%	200 (64.5)
≥10%	61 (19.7)
missing	49 (15.8)
interstitial fibrosis and tubular atrophy (IFTA)
IFTA0 - Minimal	234 (75.5)
IFTA1 - Mild	70 (22.6)
IFTA2 - Moderate	4 (1.3)
IFTA3 - Severe	0 (0.0)
missing	2 (0.7)
mesangial matrix increase (mm)
mm0 - No increase	280 (90.3)
mm1–3 - Increase	15 (4.8)
missing	15 (4.8)
arteriolar hyalinosis (ah)
ah0 - No ah	188 (60.7)
ah1 - Mild-to-moderate	96 (31.0)
ah2 - Moderate-to-severe	2 (0.7)
ah3 - Severe	1 (0.3)
missing	23 (7.4)
vascular fibrous intimal thickening (cv)
cv0 - No cv	185 (59.7)
cv1 - Mild-to-moderate	92 (29.7)
cv2 - Moderate-to-severe	9 (2.9)
cv3 - Severe	1 (0.3)
missing	23 (7.4)
any histological abnormalities
present	204 (65.8)
absent	106 (34.2)