Research Article
A Simple Model to Assess the Probability of Invasion in Ductal Carcinoma In Situ of the Breast Diagnosed by Needle Biopsy
Table 4
Assessment of the performance of the predictive model in the test population,
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| | Association of predicted probabilities and observed responses |
| | Percent concordant | 69.2 | Somers’ D | 0.511 | | Percent discordant | 18.0 | Goodman-Kruskal Gamma | 0.586 | | Percent tied | 12.8 | Kendall’s Tau-a | 0.230 | | Pairs | 9315 | Area under ROC | 0.756 |
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