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The Model’s 2-Step Discordances for the Different Patient Populatons
| Two-Step Discordance | Rule 1: HG/LER Group | Rule 2: LG+PR Group |
|---|---|---|
| AAMC Development Set | 0% | 0% |
| AAMC Superset Set | 2.1% | 0% |
| JHH MAIN Set | 2.6% | 0% |
| JHH Superset Set | 2.0% | 2.6% |
Abbreviations: AAMC = Anne Arundel Medical Center; HG/LER = high grade or low estrogen receptor; JHH = Johns Hopkins Hospital; LG+PR = low grade and progesterone receptor-positive.
