Table 4.
Internal consistency, test-retest reliability and descriptive data of overall OHRQoL and its subscales
| Number of items | Mean ± SD | Range | ICC | 95 % CI | Cronbach’s alpha | |
|---|---|---|---|---|---|---|
| 16 item P-CPQ | ||||||
| Oral symptoms | 4 | 3.73 ± 3.25 | 0–16 | 0.735 | 0.655–0.799 | 0.629 |
| Functional limitations | 4 | 2.57 ± 2.93 | 0–16 | 0.818 | 0.759–0.863 | 0.611 |
| Emotional well being | 4 | 2.44 ± 3.15 | 0–15 | 0.776 | 0.706–0.831 | 0.735 |
| Social well being | 4 | 1.36 ± 2.28 | 0–13 | 0.895 | 0.859–0.922 | 0.626 |
| Total P-CPQ | 16 | 10.10 ± 9.04 | 0–53 | 0.812 | 0.751–0.858 | 0.839 |
| 8 item P-CPQ | ||||||
| Oral symptoms | 2 | 1.93 ± 1.83 | 0–8 | 0.759 | 0.685–0.818 | 0.425 |
| Functional limitations | 2 | 1.54 ± 1.87 | 0–8 | 0.779 | 0.710–0.833 | 0.387 |
| Emotional well being | 2 | 1.21 ± 1.80 | 0–8 | 0.748 | 0.672–0.809 | 0.645 |
| Social well being | 2 | 0.59 ± 1.20 | 0–7 | 0.902 | 0.869–0.927 | 0.299 |
| Total P-CPQ | 8 | 5.30 ± 4.85 | 0–26 | 0.816 | 0.757–0.862 | 0.710 |
| FIS | 8 | 4.44 ± 5.08 | 0–24 | 0.752 | 0.676–0.812 | 0.782 |