Table III.
Characteristics among diabetic patients undergoing amputation by risk strata
| Variablea | High-riskb | Low-riskc |
|---|---|---|
| Total number | 11,558 (48.2) | 12,418 (51.8) |
| Mean age, years | 72.1 | 74.6 |
| 50–64 | 2646 (22.9) | 1925 (15.5) |
| 65–74 | 3907 (33.8) | 4051 (32.6) |
| 75–84 | 3724 (32.2) | 4237 (34.1) |
| >84 | 1281 (11.1) | 2205 (17.8) |
| Female | 5611 (48.6) | 5932 (47.8) |
| Race | ||
| White | 3285 (28.4) | 2728 (22.0) |
| Black | 7397 (64.0) | 8920 (71.8) |
| ESRD | 4917 (42.5) | … |
| >3 comorbidities | 10,292 (89.1) | … |
| Overall deaths during study period | 4175 (36.1) | 2164 (17.4) |
ESRD, End-stage renal disease.
a
Data are shown as number (%), unless otherwise indicated.
b
≤3 comorbidities (including diabetes), and did not have a diagnosis of ESRD. P <.001 calculated from χ2 for all comparisons between groups.
c
>3 comorbidities (including diabetes) or ESRD, or both. P <.001 calculated from χ2 for all comparisons between groups.