Spearman correlations between items and the aggregate howRu score
| Item | Distress | Disability | Dependence | HowRu Score |
| Pain or discomfort (Discomfort) | 0.43 | 0.15 | 0.13 | 0.53 |
| Feeling low or worried (Distress) | 0.13 | 0.11 | 0.53 | |
| Limited in what he/she can do (Disability) | 0.84 | 0.83 | ||
| Require help from others (Dependence) | 0.81 |