Table VII.
Comparison of variables associated with overall survival (OS), amputation-free survival (AFS), and freedom from major amputation (FFA)
| Variable | OS | AFS | FFA |
|---|---|---|---|
| Dialysis dependence | ↑ | ↑ | ↑ |
| Congestive heart failure | ↑ | ↑ | |
| Not living at home preoperatively | ↑ | ↑ | |
| Tissue loss | ↑ | ↑ | |
| Male gender | ↑ | ↑ | |
| Age >80 years | ↑ | ||
| Creatinine >1.8 mg/dL | ↑ | ||
| Emergency procedure | ↑ | ||
| Independent ambulation preoperatively | ↓ | ||
| Chronic β-blocker use | ↑ | ||
| Arterial segmenta | ↑ or ↓ | ||
| Nonwhite race | ↑ | ||
| Smoking (current or former)a | ↑ | ||
| Prior major contralateral amputation | ↑ |
a
Refer to the multivariate models for specific arterial segments.