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Comparison of PFS and OS in the Two Groups
| Median Survival Time in Control Group | Median Survival Time in Observation Group | X2 | P-value | |
|---|---|---|---|---|
| PFS (months) | 5.0 | 8.0 | 5.660 | 0.017 |
| OS (months) | 18.0 | 24.0 | 4.678 | 0.031 |
Abbreviations: PFS, progression-free survival; OS, overall survival.
