Table 1.

Demographic data with numbers given and percentage in parenthesis.

	Total (n = 174)
Age (years), mean (±SD)	65 (±14)
Men/women	105/69
Tobacco users	48/167 (29%)
Diagnoses
Glomerulonephritis	28 (16%)
Diabetic nephropathy	47 (27%)
Interstitial nephritis	24 (14%)
Hereditary diseases	18 (10%)
Nephrosclerosis/hypertensive disease	38 (22%)
Others	19 (11%)
Diabetic nephropathy	55 (32%)
AV access location
Radiocephalic forearm, left/right	127/19 (84%)
Radiocephalic, unknown location	8 (5%)
Brachiocephalic, left/right	4/2 (3%)
Other	14 (8%)
Investigation episodes	522
Fistulography	251 (48%)
Angiography	251 (48%)
Fistulo- and angiography	60 (11%)
PTA	318 (61%)

SD: standard deviation; AV: arteriovenous; PTA: percutaneous transluminal angioplasty.