PATIENTS CARACTERISTICS / RISK FACTORS Total Limbs                         (n = 152). Group NN Limbs               (n = 43) Group MN Limbs           (n = 70) Group SN Limbs           (n = 39)
Age > 70 years n = 84  (55%) n = 25  (58%) n = 39  (56%) n = 20  (51%)
Hypertension n = 132  (87%) n = 39  (90%) n = 57  (81%) n = 36  (92%)
Smoking n = 65  (42%) n = 20  (46%) n = 27  (39%) n = 18  (46%)
Coronary Disease n = 128  (84%) n = 38  (88%) n = 56  (80%) n = 34  (87%)
Chronic Renal Insufficiency n = 60  (39%) n = 17  (39%) n = 27  (38%) n = 16  (41%)
End Stage Renal Disease/Dialysis n = 29  (19%) n = 6  (14%) n = 14  (20%) n = 9  (23%)
Hypercholesterolemia n = 96  (63%) n = 29  (67%) n = 44  (63%) n = 23  (59%)
Cerebrovascular disease n = 33  (22%) n = 9  (21%) n = 15 (21%) n = 9 (23%)
Retinopathy n = 99  (65%) n = 15  (35%) n = 50  (71%) n = 34  (87%)
      LOCAL FEATURES IN TREATED LIMBS   Total Limbs   NN. MN. SN.
Diseased Artery  > 10 cm n = 67  (44%) n = 20  (46%) n = 29  (41%) n = 18  (46%)
Spread of Calcifications > 3cm n = 57  (37%) n = 15  (35%) n = 26  (37%) n = 16  (41%)
Associated Chr. Venuous Insufficiency n = 21  (14%) n = 5  (12%) n = 11  (15%) n = 5  (13%)
Bedridden  n = 15  (9%) n = 4  (9%) n = 7  (10%) n = 4  (10%)
TASC "B" lesions  n = 13  (8%) n =5  (12%) n = 6  (9%) n = 2  (5%)
TASC "C" lesions  n = 62  (41%) n = 15 (35%) n = 31  (44%) n = 16  (41%)
TASC "D" lesions  n = 77  (51%) n = 21  (48%) n = 33  (47%) n = 23  (59%)
Wagner grade 1-2. n = 57 (37%) n = 18 (42%) n = 25 (36%) n = 14 (36%)
Wagner grade 3-4. n = 95 (63%) n = 25 (58%) n = 44 (64%) n = 26 (66%)
 Ulcers < 10 mm2 n = 44 (29%) n = 14 (33%) n = 20 (29%) n = 10 (26%)
 Ulcers > 10 mm2 n = 108 (71%) n = 29 (67%) n = 50 (71%) n = 29 (74%) 
Table 1: