Table 3.
The risk stratification of ICIs-related IRP in our prediction model.
| Validation | Test | |||
|---|---|---|---|---|
| Risk groups | # of IRP event/ # of patients |
PPV | # of IRP event/ # of patients |
PPV |
| 0.05 (low-risk) | 15/325 | 0.05 | 0/5 | 0.00 |
| 5%–20% (medium-low) | 48/466 | 0.10 | 2/17 | 0.12 |
| 20%–50% (medium) | 146/470 | 0.31 | 5/13 | 0.38 |
| 50%–80% (medium-high) | 162/238 | 0.68 | 2/2 | 1.00 |
| >80% (high-risk) | 19/31 | 0.61 | 0/0 | / |
PPV, positive predictive value; samples are 10 times that of the original training set, due to the repeated CV framework (repeat = 10). "#" means number and "/" means division sign.