Table. Survival Rates by Treatment Groups in Intention-to-Treat and Per-Protocol Populations.
| Treatment group | Disease-free survival | Overall survival | ||
|---|---|---|---|---|
| 3 y, % (95% CI) | Events/patients, No. (%) | 5 y, % (95% CI) | Events/patients, No. (%) | |
| Intention-to-treat population | ||||
| Radiation alone | 82 (78-86) | 68/350 (19.4) | 88 (84-92) | 39/350 (11.1) |
| Concurrent chemoradiation | 85 (81-89) | 60/345 (17.4) | 89 (85-93) | 36/345 (10.4) |
| Sequential chemoradiation | 90 (86-94) | 44/353 (12.5) | 92 (88-96) | 27/353 (7.6) |
| Per-protocol population | ||||
| Radiation alone | 82 (78-86) | 63/324 (19.4) | 88 (84-92) | 35/324 (10.8) |
| Concurrent chemoradiation | 86 (80-92) | 27/190 (14.2) | 90 (85-94) | 18/190 (9.5) |
| Sequential chemoradiation | 91 (87-95) | 26/235 (11.1) | 93 (89-97) | 14/235 (6.0) |