Multiple regression analysis and total hospital cost indexed to the cost of total hospitalization of a patient with minor stroke in 2000
| Variable | Parameter Estimate | Standard Error | t Value | P |
|---|---|---|---|---|
| Intercept | 3.783 | 0.395 | 9.56 | <.0001 |
| Minor stroke | −3.346 | 0.272 | −12.31 | <.0001 |
| ≥1 Charlson comorbidity score | 0.669 | 0.321 | 2.08 | .0376 |
| Deceased | −0.698 | 0.348 | −2.01 | .0453 |
| Year* | −1.236 | 0.300 | −4.12 | <.0001 |
| Year × minor stroke | 1.238 | 0.357 | 3.47 | .0006 |
* The variable “year”: in 2000, year = 0; in 2005, year = 1.