K-M curve optimum fitting distribution and parameters
| Survival | Optimum fitting distribution | Fitting parameters | |||
| λ | γ | κ | η | ||
| PFS curve (penpulimab-combination group) | Weibull | 0.0681 (0.0647–0.0715) | 1.108 (1.053–1.164) | ||
| PFS curve (placebo-combination group) | Log-logistic | 2.790 (2.651–2.930) | 4.592 (4.362–4.822) | ||
| OS curve (penpulimab-combination group) | Weibull | 0.0252 (0.0239–0.0264) | 1.318 (1.252–1.384) | ||
| OS curve (placebo-combination group) | Log-logistic | 1.674 (1.590–1.758) | 19.474 (18.500–20.448) | ||
K-M, Kaplan-Meier; OS, overall survival; PFS, progression-free survival.