Table 2.
Morphometric Characteristics of Venous Walls in the Zone of Injury and Control Samplesa
| Variable | Zone of Injury (µm) | Control (µm) | P |
|---|---|---|---|
| Vascular histology | |||
| Vein intimal thickness | 24 (6.5–41.5) | 9 (5–13) | <0.01 |
| Vein medial thickness | 152 (69–235) | 139 (84–194) | 0.23 |
| Vein intima/media ratio | 0.21 (0.14–0.28) | 0.07 (0.01–0.13) | 0.02 |
| Fibrosis | |||
| Vein intimal and medial fibrosis (combined) | 39 (26–52) | 48 (41–53) | 0.45 |
Data are presented as mean (interquartile range) (histology) or % (interquartile range) (fibrosis).