Table 4.
Cronbach’s alphas, and intraclass correlation coefficients in the total OHIP-LT and in its subscales defined by the four-factor solution.
| Scale/Subscale | Number of Items | Cronbach’s Alpha | Intraclass Correlation Coefficient | |
|---|---|---|---|---|
| Value | (95% CI) | |||
| Total scale | 46 34 * |
0.96 0.95 |
0.95 0.90 |
(0.93; 0.96) (0.87; 0.93) |
| Factor 1. Psychosocial Impact | 14 13 * |
0.95 0.96 |
0.94 0.94 |
(0.93; 0.97) (0.91; 0.96) |
| Factor 2. Functional Limitations | 15 9 * |
0.88 0.84 |
0.87 0.54 |
(0.83; 0.91) (0.35; 0.69) |
| Factor 3. Orofacial Pain | 13 8 * |
0.87 0.85 |
0.81 0.78 |
(0.73; 0.87) (0.69; 0.85) |
| Factor 4. Speech Limitations | 4 | 0.75 | 0.48 | (0.25; 0.66) |
Notes: OHIP-LT: Oral Health Impact Profile, Lithuanian version; * Estimations for the scale and subscales of items that have all salient (≥0.50) loadings.