Table 3.
Prediction Model Results Based on Test Data Set
| Regression Coefficient P Values | ||||
|---|---|---|---|---|
| SP/Chart Composite | Vignette | |||
| Variables | Coefficient | Pr > | t | | Coefficient | Pr > | t | |
| Site | ||||
| 1 | Reference | — | Reference | — |
| 2 | .27881 | <.0001 | .01927 | NS |
| 3 | .31405 | <.0001 | .08542 | .02 |
| 4 | .34024 | <.0001 | .09583 | .01 |
| Training level | ||||
| PGY2 | .04058 | NS | −.02773 | NS |
| PGY3 | .03068 | NS | −.10742 | .001 |
| Attending | Reference | — | Reference | — |
| Condition | ||||
| COPD | Reference | — | Reference | — |
| Vascular | .00926 | NS | .08542 | .02 |
| Depression | .08084 | .04 | −.20052 | <.0001 |
| Diabetes | .10751 | .01 | .05937 | NS |
| Prediction model | ||||
| success rate | ||||
| Proportion | .52 | .63 | ||
Prediction model results for test data set are displayed for SP/chart composite and vignette indicating significant differences identified according to site, training level, and clinical condition.
PGY, postgraduate year; COPD, chronic obstructive pulmonary disease; NS, not shown.