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| stage | UICC system | Proposed system | |
|---|---|---|---|
| T stage | |||
| T1 | 33 (6.7) | 290(58.9) | |
| T2 | 91(18.5) | 202(41.1) | |
| T3 | 166(33.7) | - | |
| T4 | 202(41.1) | - | |
| N stage | |||
| N0 | 64(13.0) | 64(13.0) | |
| N1 | 159(32.3) | 159(32.3) | |
| N2 | 226(45.9) | 226(45.9) | |
| N3 | N3a | 11(2.2) | 43(8.7) |
| N3b | 32(6.5) | ||
| M stage | |||
| M | 34 (6.5) | 34 (6.5) | |
| Clinical stage | |||
| I | 15(2.9) | 54(10.3) | |
| II | 71(13.5) | 213(40.5) | |
| III | 176(33.5) | 177(33.7) | |
| IVa | 187(35.6) | 48(9.1) | |
| IVb | 43(8.2) | 34 (6.5) | |
| IVc | 34(6.5) | - | |
