Table I.
Clinical information from TCGA database (project ID, TCGA-PAAD).
| Clinical characteristics | Total, n (n=171) | Percentage |
|---|---|---|
| Sex | ||
| Male | 93 | 54.4 |
| Female | 78 | 45.6 |
| Age, years | ||
| ≤60 | 57 | 33.3 |
| >60 | 114 | 66.7 |
| T stage | ||
| T1 | 7 | 4.1 |
| T2 | 21 | 12.3 |
| T3,4 | 141 | 82.5 |
| N stage | ||
| N1 | 47 | 27.5 |
| N0 | 119 | 69.6 |
| M stage | ||
| M1 | 77 | 45 |
| M0 | 4 | 2.3 |
| Grade | ||
| G1 | 28 | 16.4 |
| G2/3/4 | 141 | 82.5 |
| Histology | ||
| PDAC | 140 | 81.9 |
| Others | 30 | 17.5 |
| MSIa | ||
| MSI-L | 9 | 5.3 |
| MSS | 137 | 80.1 |
a
Some incomplete cases were excluded. PDAC, pancreatic ductal adenocarcinoma; MSI, microsatellite instability; MSS, microsatellite stable; MSI-L, low-frequency MSI.