Table 3.
Correlations Between PROMIS Physical Functioning Subscales and IADLS.
| Spearman’s ρ correlations |
|||||
|---|---|---|---|---|---|
| IADLS | Scale P | Scale F | Scale PC | Scale FC | |
| IADLS | |||||
| Correlation coefficient | 1.000 | −.539** | −.609** | −.566** | −.505** |
| Significance (2-tailed) | .000 | .000 | .000 | .000 | |
| n | 271 | 240 | 266 | 254 | 266 |
| Scale P | |||||
| Correlation coefficient | −.539** | 1.000 | .707** | .926** | .662** |
| Significance (2-tailed) | .000 | .000 | .000 | .000 | |
| n | 240 | 246 | 241 | 242 | 243 |
| Scale F | |||||
| Correlation coefficient | −.609** | .707** | 1.000 | .714** | .676** |
| Significance (2-tailed) | .000 | .000 | .000 | .000 | |
| n | 266 | 241 | 271 | 254 | 266 |
| Scale PC | |||||
| Correlation coefficient | −.566** | .926** | .714** | 1.000 | .641** |
| Significance (2-tailed) | .000 | .000 | .000 | .000 | |
| n | 254 | 242 | 254 | 261 | 258 |
| Scale FC | |||||
| Correlation coefficient | −.505** | .662** | .676** | .641** | 1.000 |
| Significance (2-tailed) | .000 | .000 | .000 | .000 | |
| n | 266 | 243 | 266 | 258 | 272 |
Note. PROMIS = Patient-Reported Outcomes Measurement Information System; IADLS = Instrumental Activities of Daily Living Scale; P = physical functioning; F = fine motor functioning; PC = physical functioning with cognitive component; FC = fine motor functioning with cognitive component.
**
Correlation is significant at the .01 level (two-tailed).