Table 19: Parameter Estimates for LN (Hospital Cost)
| Variable | DF | Parameter Estimate | Standard Error | t Value | Pr > |t| | VIF |
| Intercept | 1 | 9.2562 | 0.0312 | 296.30 | < .0001 | 0 |
| Gender | 1 | -0.0010 | 0.0093 | -0.10 | 0.9188 | 1.0067 |
| S1S2S3 | S1S2S3 | -0.0433 | 0.0291 | -1.49 | 0.1375 | 9.7940 |
| S1S2* | 1 | -0.0643 | 0.0306 | -2.10 | 0.0359 | 7.9860 |
| S2S3* | 1 | 0.0586 | 0.0327 | 1.79 | 0.0735 | 3.5263 |
| S1S3 | 1 | -0.0459 | 0.0302 | -1.52 | 0.1285 | 7.2413 |
| S1 | 1 | -0.0270 | 0.0374 | -0.72 | 0.4702 | 2.2485 |
| S3 | 1 | 0.0285 | 0.0336 | 0.85 | 0.3973 | 3.0663 |
| A1A2* | 1 | 0.0927 | 0.0221 | 4.20 | < .0001 | 1.3417 |
| A1* | 1 | 0.0041 | 0.0137 | 0.30 | 0.7665 | 2.1691 |
| A2* | 1 | -0.0259 | 0.0158 | -1.65 | 0.0999 | 2.2211 |
| A3* | 1 | -0.0482 | 0.0175 | -2.75 | 0.0059 | 1.9206 |
| TA* | 1 | 0.0398 | 0.0104 | 3.82 | 0.0001 | 1.3339 |
| Age_Group | 1 | -0.0116 | 0.0091 | -1.28 | 0.2020 | 1.0139 |