| 
      PAD: Peripheral Artery Disease; ABI: Ankle-Brachial-Index
        |  | Paroxysmall (n = 12) | Persistent(n = 36) | Permanent(n = 52) | P value |  
        | Age    (n ± SD) | 74.9 ± 6.2 | 72.1 ± 8.9 | 75.7 ± 9.3 | 0.19 |  
        | Sex | M 6 (50%) F 6 (50%)
 | M 19 (52.8%) F 17 (47.2%)
 | M 28 (54.9%) F 24 (45.1%)
 | 0.97
 |  
        | Hypertension | 12 (100%) | 33 (91.7%) | 46 (88.46%) | 0.44 |  
        | Diabetes    mellitus | 7 (58.3%) | 16 (44.44%) | 25 (48.08%) | 0.70 |  
        | Hypercholesterolemia | 5 (41.7%) | 13 (36.11%) | 19 (36.54%) | 0.93 |  
        | Smoking | 3 (25%) | 14 (38.9%) | 17 (32.69%) | 0.65 |  
        | Obesity | 1 (8.3%) | 5 (13.9%) | 10 (19.23%) | 0.59 |  
        | Familiarity    for CVD | 0 | 7 (19.44%) | 12 (23.08%) | 0.18 |  
        | PAD | 4 (33.33%) | 17 (47.22%) | 21 (40.38%) | 0.66 |  
        | ABI | 0.89 ± 0.16 | 0.94 ± 0.18 | 0.95 ± 0.17 | 0.64 |  
        | Coronary    artery disease | 3 (25%) | 14 (38.88%) | 32 (61.53%) | 0.023 |  
        | Cerebrovascular    disease | 4 (33.3%) | 12 (32.4%) | 18 (35.3%) | 0.01 |  |