EFS and OS Based on Interim Assessment*
| EFS | OS | |||||
| Imaging | Estimate ± SE | 95% confidence interval | P | Estimate ± SE | 95% confidence interval | P |
| CT-2 (n = 57) | 0.99 | 0.82 | ||||
| CR (n = 23) | 90.6 ± 4.6 | 81.4–99.8 | 93.7 ± 3.6 | 86.5–101 | ||
| No CR (n = 34) | 91.1 ± 3.6 | 84–98.2 | 93.1 ± 2.9 | 85.5–98 | ||
| PET-2 (RIW) (n = 57) | 0.44 | 0.89 | ||||
| Negative (CR) (n = 36) | 89.6 ± 3.8 | 82.1–97 | 93.3 ± 2.8 | 87.8–98.7 | ||
| Positive (PR) (n = 21) | 93.3 ± 4.1 | 85.2–101.3 | 93.4 ± 4.0 | 85.5–101 | ||
| PET-2 (DC) (n = 53) | 0.52 | 0.61 | ||||
| Negative (CR) (n = 49) | 89.6 ± 3.4 | 76.7–95.5 | 93. ± 3.4 | 82–97.9 | ||
| Positive (PR) (n = 4) | 100* | — | 100* | — | ||
↵* There was no relapse in patients with positive PET-2 (DC).