Baseline characteristics at index EVR
| Octogenarians | Non-octogenarians | Total | P value | |
| Sample size | N=172 | N=509 | N=681 | |
| Age—years—median (IQR) | 84.1 (3.8) | 70.2 (9.4) | 71.6 (11.1) | |
| BMI—kg/m2—median (IQR) | 25.2 (4.7) | 26.8 (5.8) | 26.3 (5.5) | 0.008 |
| Female sex—n(%) | 80 (46.5) | 121 (23.8) | 201 (29.5) | <0.001 |
| LEAD stages at index—n (%) | <0.001 | |||
| Fontaine I | 0 (0.0) | 3 (0.6) | 3 (0.4) | |
| Fontaine IIa | 3 (1.8) | 35 (7.0) | 38 (5.7) | |
| Fontaine IIb | 50 (30.5) | 250 (49.8) | 300 (45.0) | |
| Fontaine IIc | 2 (1.2) | 15 (3.0) | 17 (2.6) | |
| Fontaine III | 28 (17.1) | 60 (12.0) | 88 (13.2) | |
| Fontaine IV | 80 (48.8) | 138 (27.5) | 218 (32.7) | |
| CLTI | 110 (67.1) | 213 (42.4) | 323 (48.5) | <0.001 |
| Previous amputation | 21 (12.2) | 44 (8.8) | 65 (9.7) | 0.251 |
| Arteriosclerosis manifestation—n (%) | ||||
| Chronic coronary syndrome | 92 (53.5) | 279 (55.8) | 371 (55.2) | 0.662 |
| Cerebrovascular disease | 61 (35.5) | 145 (29.2) | 206 (30.8) | 0.147 |
| Previous stroke | 30 (17.4) | 60 (12.0) | 90 (13.4) | 0.097 |
| Visceral artery disease | 8 (4.6) | 33 (6.6) | 41 (6.1) | 0.455 |
| Cardiovascular risk factors—n (%) | ||||
| Chronic heart failure | 33 (19.2) | 98 (19.7) | 131 (19.6) | 0.977 |
| Atrial fibrillation | 77 (44.8) | 112 (22.4) | 189 (28.1) | <0.001 |
| Chronic kidney disease | 59 (34.3) | 135 (27.0) | 194 (28.9) | 0.084 |
| Diabetes mellitus | 62 (36.0) | 186 (37.1) | 248 (36.8) | 0.872 |
| Dyslipidaemia | 87 (50.6) | 293 (59.0) | 380 (56.8) | 0.068 |
| Hypertension | 150 (87.2) | 426 (85.5) | 576 (86.0) | 0.678 |
| Smoking, active or previous | 57 (33.1) | 348 (69.4) | 405 (60.2) | <0.001 |
| Cancer | 34 (19.8) | 73 (14.6) | 107 (15.9) | 0.143 |
Statistically significant values are in bold.
CLTI, chronic limb threating ischaemia; EVR, endovascular revascularisation; LEAD, lower extremity artery disease.