Table 2.
Unadjusted Characteristics and Domain-Specific Logistic Regression Models of the Likelihood of Receiving a Prescription for a Prosthesis (n = 629)
| Characteristic | Received Prescription % | Odds Ratio (95% Confidence Interval) |
|---|---|---|
| Age | ||
| <76 | 31.2 | 4.56 (1.79–11.60)‡ |
| 76–85 | 14.9 | 2.09 (0.81–5.44) |
| ≥86 (reference) | 7.0 | 1.0 |
| Sex | ||
| Male | 26.6 | 2.15 (0.69–6.67) |
| Female (reference) | 15.4 | 1.0 |
| Marital status | ||
| Married | 25.4 | 0.92 (0.75–1.11) |
| Not married (reference) | 27.4 | 1.0 |
| Living circumstance before hospitalization | ||
| Extended care | 16.3 | 0.65 (0.46–0.93)† |
| Hospital | 29.6 | 1.35 (0.81–2.28) |
| Home (reference) | 27.7 | 1.0 |
| Amputation level | ||
| Transtibial | 35.6 | 3.49 (2.77–4.40)§ |
| Transfemoral (reference) | 19.5 | 1.0 |
| Etiology‖ | ||
| Chronic osteomyelitis | 31.2 | 1.03 (0.70–1.51) |
| Device infection | 27.8 | 1.14 (0.84–1.55) |
| Diabetes mellitus type I | 29.8 | 0.94 (0.73–1.21) |
| Diabetes mellitus type II | 28.5 | 1.10 (0.88–1.38) |
| Local significant infection | 25.8 | 0.86 (0.67–1.11) |
| Previous amputation complication* | 30.5 | 1.10 (0.78–1.53) |
| Problems with peripheral circulation | 25.2 | 0.73 (0.55–0.98)† |
| Skin breakdown | 26.2 | 0.89 (0.72–1.10) |
| Systemic sepsis | 17.6 | 0.50 (0.35–0.71)‡ |
| Trauma | 33.7 | 1.20 (0.92–1.58) |
| Elixhauser comorbidities‖ | ||
| Acquired immunodeficiency syndrome | 23.5 | 0.56 (0.17–1.82) |
| Alcohol abuse | 40.8 | 1.61 (1.07–2.44)† |
| Arrhythmias | 19.9 | 0.95 (0.71–1.28) |
| Chronic blood loss anemias | 11.1 | 0.41 (0.16–1.09) |
| Chronic pulmonary diseases | 22.4 | 0.91 (0.70–1.18) |
| Coagulopathy | 18.3 | 0.67 (0.39–1.15) |
| Congestive heart failure | 20.8 | 0.67 (0.52–0.87)‡ |
| Deficiency anemias | 26.6 | 1.13 (0.88–1.46) |
| Depression | 31.8 | 1.17 (0.83–1.63) |
| Diabetes mellitus | 26.2 | 0.94 (0.75–1.18) |
| Diabetes mellitus with chronic complication | 29.1 | 0.99 (0.79–1.22) |
| Drug abuse | 46.3 | 1.64 (0.89–3.01) |
| Fluid and electrolyte disturbances | 21.5 | 0.81 (0.62–1.06) |
| Hypertension | 27.3 | 1.12 (0.91–1.38) |
| Hypertension with complication | 38.5 | 1.88 (0.56–6.31) |
| Hypothyroidism | 28.1 | 1.28 (0.77–2.15) |
| Liver disease | 33.3 | 1.08 (0.65–1.80) |
| Lymphoma | 11.1 | 0.61 (0.07–5.46) |
| Metastatic cancer | 9.4 | 0.29 (0.08–0.99)† |
| Other neurological disorders | 8.3 | 0.28 (0.12–0.67)‡ |
| Paralysis | 5.4 | 0.16 (0.06–0.41) ‡ |
| Peptic ulcer disease with bleeding | 28.6 | 0.80 (0.36–1.74) |
| Peripheral vascular disease | 24.9 | 0.84 (0.67–1.05) |
| Psychoses | 21.3 | 0.61 (0.40–0.93)† |
| Pulmonary circulation diseases | 11.8 | 0.40 (0.09–1.89) |
| Renal failure | 22.4 | 0.75 (0.57–0.99)† |
| Rheumatoid arthritis | 18.8 | 0.61 (0.24–1.57) |
| Solid tumor without metastasis | 26.5 | 1.18 (0.80–1.73) |
| Valvular diseases | 23.4 | 1.15 (0.70–1.88) |
| Weight loss | 17.4 | 0.67 (0.39–1.15) |
| Medical acuity | ||
| Active pulmonary pathology | 17.2 | 0.91 (0.32–2.56) |
| Acute central nervous system | 15.4 | 0.59 (0.39–0.90)† |
| Mental health issues or substance abuse | 18.8 | 0.71 (0.28–1.81) |
| Ongoing active cardiac pathology | 22.8 | 0.88 (0.64–1.20) |
| Ongoing wound problems | 24.8 | 0.84 (0.55–1.28) |
| Serious nutritional compromise | 10.7 | 0.51 (0.27–0.94)† |
| Severe renal disease | 18.8 | 0.54 (0.37–0.79)‡ |
| Initial FIM score | ||
| Cognitive | ||
| 5–13 (reference) | 12.3 | 1.0 |
| 14–21 | 21.1 | 1.30 (0.74–2.30) |
| 22–28 | 27.6 | 1.63 (0.99–2.70) |
| 29–35 | 37.4 | 1.67 (1.03–2.70)† |
| Motor | ||
| 13–32 (reference) | 16.8 | 1.0 |
| 33–52 | 34.4 | 1.82 (1.34–2.47)‡ |
| 53–72 | 45.6 | 2.62 (1.88–3.65)§ |
| 73–91 | 42.6 | 2.18 (1.36–3.50)‡ |
Note: Etiologies, comorbidities, medical acuity, and initial functional status were studied in separate domain-specific models controlling for age, sex, marital status, living circumstance before hospitalization, and amputation level. N = 2,374 for sociodemographics, etiologies, comorbidities, and medical acuity regression models because one patient was missing living circumstance before hospitalization. N = 1,722 for initial functional status because the Functional Independence Measure (FIM) was measured only for veterans with amputations who were seen in rehabilitation services.
Amputations that likely occurred more than a year earlier.
P < †.05; ‡.01; §.001.
Congenital deformity, lower extremity cancer, and obesity were not included in analyses because of low prevalence.