Table 5.
Cross-tabulation of the substages of the 7th and 8th editions of the American Joint Committee on Cancer (AJCC) staging system
| 8th edition | ||||||||
|---|---|---|---|---|---|---|---|---|
| I/II | IIIa | IIIb | IIIc | IVa | IVb | Total | ||
| 7th edition | I/II | 33 | 0 | 0 | 0 | 0 | 0 | 33 |
| IIIa | 0 | 78 | 0 | 0 | 0 | 0 | 78 | |
| IIIb | 0 | 0 | 0 | 18 | 7 | 0 | 25 | |
| IVa | 0 | 0 | 11 | 17 | 13 | 0 | 41 | |
| IVb | 0 | 0 | 0 | 0 | 0 | 71 | 71 | |
| Total | 33 | 78 | 11 | 35 | 20 | 71 | 248 | |
Each row shows how many patients at a specific 7th edition stage transitioned to other stages according to the 8th edition. Numbers in red refer to patients who moved to a different stage from the 7th to the 8th edition