Table 2.
Crude Amputation Risk Estimates From Cumulative Incidence Function Curves at 1, 3, 5, and 10 Years
| Race×SES (Income) | Major Amputation Risk, % (95% CI) | |||
|---|---|---|---|---|
| 1 y | 3 y | 5 y | 10 y | |
| Black | ||||
| ≤$40 000 | 4.4 (4.1–4.8) | 7.2 (6.8–7.7) | 9.4 (8.8–9.9) | 13.0 (12.3–13.8) |
| >$40 000 | 4.3 (4.0–4.7) | 6.8 (6.4–7.3) | 8.9 (8.4–9.5) | 12.9 (12.2–13.7) |
| White | ||||
| ≤$40 000 | 2.4 (2.2–2.6) | 3.9 (3.7–4.1) | 5.0 (4.8–5.3) | 6.9 (6.6–7.2) |
| >$40 000 | 2.1 (2.0–2.2) | 3.3 (3.2–3.4) | 4.3 (4.2–4.4) | 6.0 (5.9–6.2) |
CI indicates confidence interval; SES, socioeconomic status.