Table 2.
Psychometric properties of the MetabQoL 1.0 questionnaire
| Scale | Descriptive statistics | Reliability | ||||||
|---|---|---|---|---|---|---|---|---|
| N items | Mean | SD | Median | Skewness | % Floor | % Ceiling | Cronbach’s α | |
| Self/proxy | Self/proxy | Self/proxy | Self/proxy | Self/proxy | Self/proxy | Self/proxy | ||
| Physical | 13 | 81.68/69.92 | 14.70/20.75 | 84.16/71.15 | −0.92/−0.78 | 0/0 | 13.2/2.4 | 0.77/0.90 |
| Mental | 6 | 85.42/71.63 | 15.43/20.58 | 89.58/77.08 | −1.36/−0.27 | 0/0 | 23.7/9.5 | 0.70/0.81 |
| Social | 7 | 86.47/72.87 | 15.60/20.22 | 92.86/73.21 | −1.19/−0.36 | 0/0 | 26.3/14.3 | 0.70/0.81 |
| Total score | 26 | 83.83/71.11 | 13.39/18.68 | 87.98/71.15 | −0.95/−0.32 | 0/0 | 5.3/2.4 | 0.88/0.93 |
| Disease severity | 2 | 81.25/75.30 | 21.89/26.69 | 87.50/87.50 | −1.34/−1.12 | 0/0 | 39.5/31 | |