Table 2.
Total percentage of questions answered correctly
| Trainees (%) | Attendings (%) | P value for difference in rates of correctness across modalities in fellows* | P value for difference in rates of correctness across modalities in attendings* | P value for difference in rates of correctness for this modality between fellows and attendings* | |
|---|---|---|---|---|---|
| 2-D | 10.5** | 22.2** | < .001 | < .001 | 0.003 |
| 3D PACS | 46.7** | 54.8** | 0.10 | ||
| 3D enhanced | 67.1 | 66.2 | 0.82 | ||
| 3D printed | 73.8 | 74.0 | 0.97 |
*All p values are from logistic mixed effects models for answer correctness. These models included random physician effects to account for the clustering of answers within physicians, and each question was treated as a distinct observation
**P < .05 as compared to modality 4 in this group of physicians (evaluated in the same logistic mixed effects models described above) (all 4 of these P values were < .001)