Study | Time period | Strata | Standardization | Annual PFA incidence rate | Annual TTA incidence rate | Amputations per annum | ||||
---|---|---|---|---|---|---|---|---|---|---|
Crude | Age | Sex | Mean | SD | Mean | SD | Mean | |||
Per 100,000 population | ||||||||||
Dillingham et al. [48] | 1986–1997 | Black race | No | Yes | Yes | 19.00a | 1.63 | 17.84 | 2.12 | PFA 246; TTA 232 |
Non-black race | No | Yes | Yes | 12.78a | 1.47 | 8.94 | 0.86 | PFA 477; TTA 342 | ||
Feinglass et al. [13] | 1987–2004 | No | Yes | Yes | 4.02b | 0.93 | 10.57 | 1.12 | PFA 319; TTA 822 | |
Per 100,000 person-years general population | ||||||||||
Sandnes et al. [49] | 1987–2000 | No | Yes | Yes | 7.93c | 1.06 | 9.58 | 1.08 | PFA 317; TTA 350 | |
Per 1000 patient-years | ||||||||||
Davis et al. [36] | 1993–2005 | Yes | No | No | 3.7 | NR | 1.1 | NR | PFA 3; TTA 1 |