Table 2. Association of Rehabilitation Setting Functional Assessment Score and Other Factors With National Health and Aging Trends Study Function Assessmenta.
| Factor | β (95% CI) | |
|---|---|---|
| Model A | Model B | |
| Rehabilitation function score | 0.87 (0.80 to 0.93) | 1.00 (0.93 to 1.08) |
| Rehabilitation setting | ||
| HHA | NA | 1 [Reference] |
| SNF | NA | 4.02 (2.72 to 5.31) |
| IRF | NA | −2.54 (−5.51 to 0.42) |
| Days since rehabilitation discharge | 0.02 (0.00 to 0.04) | 0.03 (0.01 to 0.05) |
| Intercept | 5.73 (3.77 to 7.70) | 0.72 (−1.79 to 3.24) |
| R2 | 0.40 | 0.42 |
Abbreviations: HHA, home health agency; IRF, inpatient rehabilitation facility; NA, not applicable; SNF, skilled nursing facility.
a
Model A was used to evaluate the correlation of the assessments adjusting for days between the assessments. Model B was used to evaluate for differences explained by rehabilitation setting. In addition, Model B provided a formula that can be used to standardize functional scores across rehabilitation settings.