Table 3. Association between frequency of graft interventions and preexisting vascular abnormalities.
| Vascular measurement | No. of interventions | Graft-y of follow-up |
Interventions/10 0 patient-y |
RR (95% CI) | p-value |
|---|---|---|---|---|---|
| Arterial intimal thickness | |||||
| >25 μm | 16 | 15.5 | 103 | 1.00 (reference) | -- |
| 10-25 μm | 42 | 28.0 | 150 | 1.45 (0.83-2.65) | 0.2 |
| <10 μm | 72 | 35.1 | 205 | 1.99 (1.16-3.42) | <0.001 |
| Vein intimal thickness | |||||
| >10 μm | 42 | 34.9 | 120 | 1.00 (reference) | -- |
| 5-10 μm | 50 | 27.7 | 180 | 1.50 (0.99-2.27) | 0.05 |
| <5 μm | 47 | 18.5 | 254 | 2.11 (1.39-3.20) | <0.001 |
| Arterial Medial fibrosis | |||||
| ≥70% | 20 | 29.6 | 68 | 1.00 (reference) | -- |
| <70% | 96 | 44.8 | 214 | 3.17 (1.96-5.13) | <0.001 |
| Arterial Calcification | |||||
| ≥10% | 20 | 17.6 | 114 | 1.00 (reference) | -- |
| <10% | 95 | 39.5 | 240 | 2.12 (1.31-3.43) | 0.001 |
RR, relative risk; CI, confidence interval.