eAppendix 3.
Linear Regression of Service Satisfaction Ratings, Separate Bivariate Models
| Variables | OPUS Client Service Satisfaction | |
|---|---|---|
| β | P Value | |
| OPUS client device satisfaction | 0.7 | < .001 |
| Trinity Amputation and Prosthetic Experience Scale | −15.6 | < .001 |
| Amputation level | ||
| Shoulder | 6.1 | .13 |
| Transhumeral | −2.7 | .24 |
| Transradial (ref) | ||
| Bilateral | 5.3 | .23 |
| Prothesis type | ||
| Body-powered (ref) | ||
| Myoelectric/Hybrid | 0.1 | .97 |
| Cosmetic | 11.7 | .02 |
| Amputation care in prior year | ||
| No (ref) | ||
| Yes | −6.8 | .001 |
| Age group | ||
| 18 to 44 | 1.3 | .69 |
| 45 to 64 (ref) | ||
| 65 to 74 | 0.2 | .95 |
| 75+ | 1.3 | .71 |
| Years since amputation | 0.0 | .91 |
| Era of amputation | ||
| Pre-Vietnam | 0.8 | .87 |
| Vietnam War | −0.4 | .88 |
| Post-Vietnam through Gulf War | 0.5 | .88 |
| Post-Gulf War to September 10, 2001 | 1.2 | .74 |
| September 11, 2001 to present(ref) | ||
| Gender | ||
| Male (ref) | ||
| Female | −0.9 | .92 |
| Race | ||
| White (ref) | ||
| Black | 8.6 | .005 |
| Other/Mixed | 4.9 | .27 |
| Unknown | 6.6 | .08 |
| Ethnicity | ||
| Hispanic | 3.4 | .29 |
| Not Hispanic (ref) | ||
| Unknown | 7.6 | .29 |
| Lower limb amputation | ||
| No (ref) | ||
| Yes | −0.8 | .79 |
| Geographic region | ||
| Northeast | −5.0 | .08 |
| South (ref) | ||
| Upper Midwest | −3.1 | .25 |
| West | −3.8 | .16 |
| Amputation etiology | ||
| Combat | 1.6 | .41 |
| Accident | −1.4 | .50 |
| Burn | −0.6 | .86 |
| Cancer | −9.0 | .24 |
| Diabetes | −10.7 | .45 |
| Infection | −0.9 | .78 |
Abbreviation: Orthotics and Prosthetics User’s Survey.