Table 3.
A linear mixed effect model: fixed effect coefficients
| Estimate | Std. Error | 95% CI | ||
|---|---|---|---|---|
| Lower limit | Upper limit | |||
| Intercept | 1.327 | 0.099 | 1.137 | 1.518 |
| Shoulders down (BL) (*) | 0.246 | 0.115 | 0.022 | 0.468 |
| Scoliosis/kyphosis (BL) | 0.503 | 0.244 | 0.023 | 0.972 |
| Mask removal (BL) | 0.221 | 0.114 | −0.005 | 0.444 |
| Neck support device (BL): | ||||
| Large size, standard | 0.130 | 0.185 | −0.240 | 0.491 |
| Small size, custom | −0.740 | 0.309 | −1.337 | −0.119 |
| Baseline technicians (BL) | −0.198 | 0.074 | −0.346 | −0.051 |
| Pain (BL) | −0.027 | 0.042 | −0.110 | 0.055 |
| Anxiety (BL) | −0.005 | 0.005 | −0.016 | 0.005 |
| Treament technicians | −0.043 | 0.045 | −0.132 | 0.045 |
| Body mass index | −0.029 | 0.011 | −0.051 | −0.007 |
(*) ‘BL’ means a baseline measured variable