2. Common meta‐analysis stage scale (current analysis ‐ based on TNM 6th edition).
T stage | N stage | M stage | Meta‐analysis stage |
1, 2 | 0 | 0 | I |
1, 2 | 1 | 0 | II |
3 | 0 | 0 | II |
1, 2 | 2 | 0 | III |
3 | 1, 2 | 0 | III |
Any | Any | 1 | IV |
T stage | N stage | M stage | Meta‐analysis stage |
1, 2 | 0 | 0 | I |
1, 2 | 1 | 0 | II |
3 | 0 | 0 | II |
1, 2 | 2 | 0 | III |
3 | 1, 2 | 0 | III |
Any | Any | 1 | IV |