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Median overall survival time*.
| Treatment group | Median survival (95% CI) |
|---|---|
| Non-RT and non-surgery | 4.00 (3.74–4.26) |
| RT | 8.00 (6.82–9.18) |
| Surgery | 16.00 (15.02–16.98) |
| RT and surgery | 22.00 (20.25–23.75) |
CI, confidence interval; RT, radiotherapy.
*Log–rank test, p <0.0001.
