Table 3. Linear regression models with the total OMES score as dependent variable.
| Model parameters | Independent variables | B | SE B | β | t | p | Confidence Interval | Collinearity | ||
|---|---|---|---|---|---|---|---|---|---|---|
| -95% | .95% | Tolerance | VIF | |||||||
| Model 1 | Constant | 86.19 | 2.53 | 34.04 | < .001 | |||||
| R2=0.17; Adjusted R2=0.09 | Tinnitus intensity | -0.09 | 0.05 | -0.27 | -1.72 | 0.09 | -0.19 | 0.02 | 0.78 | 1.29 |
| F=2.09; p=0.099 | THI score | -0.02 | 0.04 | -0.01 | -0.06 | 0.95 | -0.09 | 0,08 | 0.82 | 1.22 |
| AIC/BIC=306.9/318.1 | CF-PDI score | -0.07 | 0.12 | -0.12 | -0.60 | 0.55 | -0,32 | 0.18 | 0.52 | 1.92 |
| NDI score | -0.10 | 0.20 | -0.11 | -0.51 | 0.61 | -0.50 | 0.30 | 0.41 | 2.43 | |
| Model 2 | Constant | 86.15 | 2.42 | 35.67 | < .001 | |||||
| R2=0.17; Adjusted R2=0.11 | Tinnitus intensity | -0.09 | 0.05 | -0.28 | -1.76 | 0.09 | -0.19 | 0.01 | 0.79 | 1.27 |
| F=2.85; p=0.048 | CF-PDI score | -0.07 | 0.12 | -0.12 | -0.61 | 0.54 | -0.32 | 0.17 | 0.52 | 1.92 |
| AIC/BIC=305.0/314.2 | NDI score | -0.10 | 0.19 | -0.11 | -0.55 | 0.59 | -0.48 | 0.28 | 0.44 | 2.27 |
| Model 3 | Constant | 86.23 | 2.39 | 36.046 | < .001 | |||||
| R2=0.16; Adjusted R2=0.12 | ||||||||||
| F=4.19; p=0.022 | Tinnitus intensity | -0.10 | 0.04 | -0.31 | -2.18 | 0.03 | -0.19 | -7.54x10-3 | 0.94 | 1.06 |
| AIC/BIC=303.3/310.7 | CF-PDI score | -0.12 | 0.09 | -0.19 | 0.09 | 0.19 | -0.30 | 0.06 | 0.94 | 1.06 |
| Model 4 | Constant | 83.79 | 1.53 | 54.68 | < .001 | |||||
| R2=0.13; Adjusted R2=0.11 | ||||||||||
| F=6.53; p=0.014 | ||||||||||
| AIC/BIC=303.1/308.7 | Tinnitus intensity | -0.11 | 0.04 | -0.36 | -2.56 | 0.01 | -0.20 | -0.02 | 1.00 | 1.00 |
SE: Standard Error; AIC: Akaike Information Criterion; BIC: Bayesian Information Criterion; VIF: Variance Inflation Factor; THI: Tinnitus Handicap Inventory; CF-PDI: Craniofacial Pain and Disability Inventory; NDI: Neck Disability Index.