Table 4 Distribution of scores and reliability coefficients for the WHODAS-2 and SF-36 domains
Mean | SD | Observed Range | Missing domain (%) | Floor (%) | Ceiling (%) | Cronbach's alpha | ICC (n = 404) | ||
|---|---|---|---|---|---|---|---|---|---|
WHODAS-2 | |||||||||
Understanding and Communicating | 17.9 | 20.9 | (0.0 - 100.0) | 2.7 | 0.6 | 29.1 | 0.88 | 0.612 | |
Getting Around | 27.8 | 27.1 | (0.0 - 100.0) | 2.8 | 1.0 | 25.4 | 0.80 | 0.197 | |
Self Care | 14.4 | 21.2 | (0.0 - 100.0) | 2.8 | 0.3 | 53.6 | 0.77 | 0.524 | |
Getting along with people | 18.9 | 23.3 | (0.0 - 100.0) | 5.0 | 1.2 | 36.1 | 0.81 | 0.642 | |
Life Activities: household | 37.7 | 34.4 | (0.0 - 100.0) | 13.3 | 11.1 | 24.8 | 0.94 | 0.680 | |
Life Activities: work or school | 37.9 | 38.1 | (0.0 - 100.0) | 50.2 | 19.8 | 27.3 | 0.98 | 0.690 | |
Participation in Society | 28.1 | 21.0 | (0.0 - 91.7) | 5.2 | 0.0 | 10.9 | 0.82 | 0.693 | |
Global | 24.8 | 19.3 | (0.0 - 93.5) | 15.2 | 0.0 | 3.6 | 0.95 | 0.738 | |
SF-36 | |||||||||
Physical Functioning | 65.4 | 29.8 | (0.0 - 100.0) | 4.5 | 4.6 | 10.8 | 0.94† | 0.88* | 0.791 |
Role Physical | 49.0 | 42.0 | (0.0 - 100.0) | 4.4 | 33.4 | 30.5 | 0.85† | 0.96* | 0.696 |
Role Emotional | 60.3 | 41.0 | (0.0 - 100.0) | 5.0 | 22.6 | 43.2 | 0.87† | 0.83* | 0.556 |
Social Functioning | 64.9 | 29.0 | (0.0 - 100.0) | 3.3 | 4.0 | 23.4 | 0.68† | 0.78* | 0.533 |
Mental Health | 61.2 | 21.2 | (0.0 - 100.0) | 5.1 | 0.7 | 1.4 | 0.78† | 0.87* | 0.714 |
Bodily Pain | 57.6 | 29.5 | (0.0 - 100.0) | 3.3 | 2.1 | 21.3 | 0.83† | 0.88* | 0.610 |
Vitality | 50.9 | 21.8 | (0.0 - 100.0) | 5.0 | 1.8 | 0.8 | 0.84† | 0.94* | 0.684 |
General Health | 53.4 | 21.3 | (0.0 - 100.0) | 5.6 | 0.9 | 0.5 | 0.82† | 0.87* | 0.759 |
PCS | 42.0 | 11.2 | (13.3 - 71.6) | 8.0 | --- | --- | --- | --- | 0.782 |
MCS | 43.5 | 13.1 | (-0.2 - 72.8) | 8.0 | --- | --- | --- | --- | 0.676 |