TABLE 2.
Pathology inputs and resulting correlation coefficients of linear and ANN models
| Linear models | Nonlinear model ANN | ||
|---|---|---|---|
| BCPS | Magee2 | ||
| ERAS | ✓ | ✓ | ✓ |
| PRAS | ✓ | ✓ | ✓ |
| Nottingham score | x | ✓ | x |
| Nuclear grade | ✓ | x | ✓ |
| Tubule grade | ✓ | x | ✓ |
| Tumor size | x | ✓ | ✓ |
| r (95% CI) Literature | 0.65 (N/A) [23] | 0.66 (0.59–0.72) [25] | N/A |
| r (95% CI) Our data set | 0.44 (0.19–0.63) | 0.40 (0.15–0.61) | 0.82 (0.71–0.89) |
Note: Comparison of variables and goodness-of-fit for existing linear models to ANN model using data from Duke University and University of Wisconsin-Madison.