TABLE 3.
Estimates of the growth parameters and the relationships between the growth parameters and covariates for the DRS
| Growth parameter/covariate |
Estimate | P | Lower 95% confidence limit |
Upper 95% confidence limit |
|---|---|---|---|---|
| Intercepta | 2.6754 | <.0001 | 2.5429 | 2.8079 |
| Linear changea | − 0.1406 | <.0001 | − 0.1640 | − 0.1173 |
| Quadratic changea | 0.01034 | <.0001 | 0.008796 | 0.01189 |
| Intercept/age at injury | 0.02009 | <.0001 | 0.01465 | 0.02553 |
| Linear change/age at injury | 0.004732 | <.0001 | 0.004031 | 0.005433 |
| Intercept/Cognitive FIM at admission | − 0.05328 | <.0001 | − 0.06673 | − 0.03984 |
| Intercept/Motor FIM at admission | − 0.02856 | <.0001 | − 0.03496 | − 0.02215 |
| Linear change/Motor FIM at admission | 0.001982 | .0030 | 0.000675 | 0.003289 |
| Quadratic change/Motor FIM at admission | − 0.00018 | <.0001 | − 0.00027 | − 0.00010 |
| Intercept/race | 0.6421 | <.0001 | 0.4670 | 0.8172 |
| Intercept/RLOS | 0.03305 | <.0001 | 0.02858 | 0.03752 |
| Linear change/RLOS | − 0.00325 | <.0001 | − 0.00428 | − 0.00223 |
| Quadratic change/RLOS | 0.000105 | .0020 | 0.000038 | 0.000172 |
| Intercept/education | − 0.8824 | <.0001 | − 1.0504 | − 0.7143 |
| Intercept/living status | 0.8195 | .0003 | 0.3786 | 1.2604 |
| Linear change/living status | 0.2973 | <.0001 | 0.1904 | 0.4041 |
| Quadratic change/living status | − 0.01292 | .0008 | − 0.02043 | − 0.00541 |
Abbreviations: DRS, Disability Rating Scale; FIM, Functional Independence Measure; RLOS, rehabilitation length of stay.
a
Growth parameter.