Supplemental Table 4. Multicollinearity test among independent variables and omnibus test of model coefficients.
| Independent variable | Collinearity diagnostic | |
|---|---|---|
| Tolerance | VIF | |
| Physical function | 0.341 | 2.932 |
| Role function | 0.404 | 2.473 |
| Cognitive function | 0.664 | 1.507 |
| Pain | 0.409 | 2.442 |
| Fatigue | 0.268 | 3.732 |
| Nausea | 0.689 | 1.452 |
| Insomnia | 0.730 | 1.370 |
| Diarrhoea | 0.871 | 1.148 |
| Financial difficulty | 0.824 | 1.214 |
| Choking | 0.726 | 1.378 |
| Dysphagia | 0.818 | 1.222 |
| Eating | 0.550 | 1.817 |
| Dry mouth | 0.645 | 1.550 |
| Trouble coughing | 0.566 | 1.767 |
| Trouble talking | 0.506 | 1.976 |
| Clinical stage at diagnosis | 0.869 | 1.151 |
| Histologic grade | 0.884 | 1.131 |
| VIF-Variance inflation factor | ||