Table 2.
R2 Values for Predicting Discharge Self-Care, Mobility and Cognition in Six Models in three Impairment Categories.
| Model | Self-Care R2 | Mobility R2 | Cognition R2 |
|---|---|---|---|
| Stroke | |||
| Base Model | 0.566 (0.564 – 0.577) | 0.474 (0.468 – 0.481) | 0.620 (0.619 – 0.630) |
| Base + Charlson | 0.571 (0.564 – 0.577) | 0.476 (0.469 – 0.482) | 0.626 (0.620 – 0.631) |
| Base + TIER | 0.572 (0.565 – 0.578) | 0.478 (0.471 – 0.484) | 0.627 (0.621 – 0.632) |
| Base + FCI | 0.576 (0.569 – 0.582) | 0.479 (0.472 – 0.485) | 0.628 (0.622 – 0.633) |
| Base + Elixhauser | 0.575 (0.568 – 0.581) | 0.483 (0.476 – 0.489) | 0.629 (0.623 – 0.634) |
| Base + HCC | 0.584 (0.577 – 0.590) | 0.493 (0.486 – 0.499) | 0.632 (0.626 – 0.637) |
| Fracture | |||
| Base Model | 0.422 (0.414 – 0.429) | 0.309 (0.301 – 0.316) | 0.553 (0.546 – 0.559) |
| Base + Charlson | 0.425 (0.417 – 0.432) | 0.315 (0.307 – 0.322) | 0.554 (0.547 – 0.560) |
| Base + TIER | 0.430 (0.422 – 0.437) | 0.321 (0.313 – 0.328) | 0.555 (0.548 – 0.561) |
| Base + FCI | 0.429 (0.421 – 0.436) | 0.319 (0.311 – 0.326) | 0.556 (0.549 – 0.562) |
| Base + Elixhauser | 0.440 (0.432 – 0.447) | 0.332 (0.324 – 0.339) | 0.564 (0.557 – 0.576) |
| Base + HCC | 0.446 (0.438 – 0.453) | 0.337 (0.329 – 0.344) | 0.560 (0.553 – 0.566) |
| Joint Replacement | |||
| Base Model | 0.230 (0.221 – 0.238) | 0.186 (0.177 – 0.194) | 0.373 (0.363 – 0.382) |
| Base + Charlson | 0.233 (0.224 – 0.241) | 0.192 (0.183 – 0.200) | 0.375 (0.365 – 0.384) |
| Base + TIER | 0.231 (0.222 – 0.239) | 0.189 (0.180 – 0.197) | 0.374 (0.364 – 0.383) |
| Base + FCI | 0.242 (0.233 – 0.250) | 0.194 (0.185 – 0.202) | 0.379 (0.369 – 0.388) |
| Base + Elixhauser | 0.246 (0.236 – 0.255) | 0.208 (0.199 – 0.216) | 0.385 (0.375 – 0.394) |
| Base + HCC | 0.252 (0.242 – 0.261) | 0.219 (0.210 – 0.227) | 0.382 (0.372 – 0.391) |
Base model included age, gender, race/ethnicity, Medicare qualifying disability, dual eligibility, length of stay and admission functional status. Charlson: Charlson Comorbidity Index; Tier: CMS-Tier; FCI: Functional Comorbidity Index; Elixhauser: Elixhauser Comorbidity Index; HCC: CMS-Hierarchical Condition Category.