Table 3 KM curve optimum fitting distribution and parameters
Optimum fitting distribution | Survival function | Fitting parameters | ||
|---|---|---|---|---|
μ | σ | |||
OS curve(sintilimab-combination group) | lognormal | S(t) = 1-φ〔(logt-μ)/σ〕 | 3.2277 | 1.1832 |
OS curve(placebo-combination group) | lognormal | 2.7519 | 1.1003 | |
PFS curve(sintilimab-combination group) | lognormal | 2.2309 | 1.0708 | |
PFS curve(placebo-combination group) | lognormal | 1.6359 | 0.8141 | |