Table 3.
Criterion validity: correlation between total MSTS-UE score and TESS or SF-36 components
| Reference score | Mean | SD | Spearman’s correlation coefficients | 95% CI | p Value |
|---|---|---|---|---|---|
| TESS | 87 | 16.5 | 0.75‡ | 0.60–0.85 | < 0.001 |
| SF-36 (physical component summary) | 45 | 16.5 | 0.37† | 0.11–0.58 | 0.007 |
| SF-36 (mental component summary) | 53 | 9.1 | 0.05 | −0.22 to 0.32 | 0.719 |
| SF-36 (physical functioning) | 49 | 19.2 | 0.60‡ | 0.39–0.75 | < 0.001 |
| SF-36 (role physical) | 40 | 13.4 | 0.47‡ | 0.23–0.66 | < 0.001 |
| SF-36 (bodily pain) | 50 | 9.1 | 0.04 | −0.24 to 0.30 | 0.796 |
| SF-36 (general health) | 51 | 9.4 | 0.32* | 0.51–0.54 | 0.022 |
| SF-36 (vitality) | 51 | 8.9 | < 0.01 | −0.27 to 0.27 | 0.981 |
| SF-36 (social functioning) | 48 | 12.2 | 0.34* | 0.71–0.56 | 0.016 |
| SF-36 (role emotional) | 47 | 12.4 | 0.13 | −0.15 to 0.39 | 0.362 |
| SF-36 (mental health) | 52 | 9 | 0.24 | −0.03 to 0.48 | 0.089 |
*0.05 > p ≥ 0.01; †0.01 > p ≥ 0.001; ‡p < 0.001; MSTS-UE = Musculoskeletal Tumor Society – Upper Extremity; TESS = Toronto Extremity Salvage Score.