Table 2. Staging and median CSS of PDAC patients based on the AJCC 8th staging system (N=1,676).
| Classifications | n (%) | Median CSS (month) | 95% CI |
| CSS, cancer specific survival; PDAC, pancreatic ductal adenocarcinoma; AJCC, American Joint Committee on Cancer; 95% CI, 95% confidence interval; NA, not available. | |||
| TNM grouping | |||
| IA | 210 (12.5) | NA | NA |
| IB | 477 (28.5) | 30 | 27−NA |
| IIA | 176 (10.5) | 32 | 21−NA |
| IIB | 498 (29.7) | 19 | 17−21 |
| III | 315 (18.8) | 16 | 14−17 |
| T stage (N0) | |||
| T1 | 210 (12.5) | NA | NA |
| T2 | 477 (28.5) | 30 | 27−NA |
| T3 | 176 (10.5) | 32 | 21−NA |
| T4 | 96 (5.7) | 17 | 15−24 |
| T stage | |||
| T1 | 317 (18.9) | 35 | 26−NA |
| T2 | 861 (51.4) | 24 | 21−28 |
| T3 | 300 (17.9) | 21 | 19−32 |
| T4 | 198 (11.8) | 16 | 15−20 |
| N stage | |||
| N0 | 959 (57.2) | 32 | 28−39 |
| N1 | 575 (34.3) | 19 | 17−20 |
| N2 | 142 (8.5) | 14 | 11−17 |