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Distant metastasis according to stage and molecular class in the stage I and II patients
| Stage | Total cases | No Distant Metastasis | With Distant Metastasis | ||||
|---|---|---|---|---|---|---|---|
| Total | Class 1 | Class 2 | Total | Class 1 | Class 2 | ||
| Ia/IA/IB | 264 | 251 | 216 | 35 | 13 | 9 | 4 |
| IIa | 15 | 11 | 4 | 7 | 4 | 0 | 4 |
| IIA | 35 | 25 | 15 | 10 | 10 | 2 | 8 |
| IIB | 26 | 18 | 7 | 11 | 8 | 1 | 7 |
| IIC | 17 | 9 | 2 | 7 | 8 | 1 | 7 |
| Total | 357 | 314 | 244 | 70 | 43 | 13 | 30 |
aSubstage unknown
