TABLE V.
Regression Results: Effect of Upper-Extremity Amputation Status on SMFA Scores of Participants with Unilateral Upper-Extremity Injuries (N = 137)
| Total Dysfunction* | Mobility Subscore* | Daily Activities Subscore* | Emotional Subscore* | Arm and Hand Subscore* | |
| Upper-extremity amputation | −2.95 (−8.78 to 2.87) | −5.47 (−12.1 to 1.13) | −1.53 (−9.23 to 6.16) | −7.68 (−16.1 to 0.78) | 2.23 (−5.32 to 9.79) |
| METALS lower-extremity injury | 7.03† (1.70 to 12.37) | 19.6‡ (13.5 to 25.6) | 4.61 (−2.43 to 11.65) | 5.25 (−2.49 to 12.99) | −2.46 (−9.37 to 4.45) |
| Age | 0.73‡ (0.34 to 1.12) | 0.61‡ (0.16 to 1.05) | 0.57† (0.05 to 1.09) | 0.84‡ (0.27 to 1.41) | 0.97‡ (0.46 to 1.48) |
| Months to interview | −0.23† (−0.42 to −0.05) | −0.20 (−0.41 to 0.01) | −0.39‡ (−0.64 to −0.15) | −0.19 (−0.46 to 0.08) | −0.11 (−0.35 to 0.13) |
| Rank | |||||
| Junior enlisted | Reference | Reference | Reference | Reference | Reference |
| Senior enlisted | −5.14 (−10.9 to 0.64) | −1.47 (−8.00 to 5.07) | −5.62 (−13.2 to 2.00) | −8.00 (−16.4 to 0.38) | −6.16 (−13.6 to 1.33) |
| Commissioned officer | −7.79 (−17.0 to 1.44) | −6.71 (−17.2 to 3.73) | −5.55 (−17.7 to 6.63) | −15.4† (−28.8 to −2.01) | −5.14 (−17.1 to 6.82) |
| No. of combat experiences | 1.04‡ (0.38 to 1.70) | 0.88† (0.14 to 1.63) | 0.72 (−0.15 to 1.59) | 2.07‡ (1.11 to 3.02) | 0.72 (−0.13 to 1.58) |
| Social support | |||||
| Low (≤70) | Reference | Reference | Reference | Reference | Reference |
| Moderate (71 to 80) | −7.46† (−13.4 to −1.49) | −5.34 (−12.1 to 1.41) | −6.22 (−14.1 to 1.66) | −14.5‡ (−23.2 to −5.87) | −5.20 (−12.9 to 2.54) |
| High (>80) | −7.94† (−14.4 to −1.44) | −5.28 (−12.6 to 2.07) | −9.65† (−18.2 to −1.07) | −15.8‡ (−25.2 to −6.33) | −1.94 (−10.4 to 6.49) |
| R2 | 0.27 | 0.36 | 0.17 | 0.30 | 0.15 |
*
The values are given as the regression coefficient, with the 95% confidence interval in parentheses; higher SMFA scores represent worse function in a given domain.
†
Significant at p < 0.05.
‡
Significant at p < 0.01.