Research Article
A Simple Model to Assess the Probability of Invasion in Ductal Carcinoma In Situ of the Breast Diagnosed by Needle Biopsy
Table 6
Assessment of the performance of the predictive model in the validation population,
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| | Association of predicted probabilities and observed responses |
| | Percent concordant | 80.6 | Somers’ D | 0.705 | | Percent discordant | 10.1 | Goodman-Kruskal Gamma | 0.777 | | Percent tied | 9.3 | Kendall’s Tau-a | 0.260 | | Pairs | 918 | Area under ROC | 0.852 |
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