TABLE 2.
Comparisons of 3‐year survival rates among groups defined by plasma EBV DNA dynamic change patterns across 4 time points pre‐ and posttreatment
| Subject | N (%) | PFS | DMFS | LRFS | OS |
|---|---|---|---|---|---|
| EBV‐DNA Dynamic change pattern | 252 | p < 0.001 | p < 0.001 | p < 0.001 | p < 0.001 |
| Pattern 1 (Pre‐ & Post 0+) | 82 (32.5%) | 91.4% | 97.5% | 95.0% | 96.2% |
| Pattern 2 (Pre+ & Post 0+) | 104 (41.3%) | 86.2% | 92.0% | 92.1% | 99.0% |
| Pattern 3 (Pre‐ & Post 1+) | 18 (7.2%) | 66.7% | 77.8% | 88.2% | 94.4% |
| Pattern 4 (Pre+ & Post 1+) | 17 (6.7%) | 39.7% | 70.6% | 69.5% | 87.4% |
| Pattern 5 (Pre‐/+ & Post ≥2+) | 31 (12.3%) | 6.5% | 17.9% | 49.1% | 55.3% |
Abbreviations: DMFS, distant metastasis‐free survival; LRFS, locoregional relapse‐free survival; OS, overall survival; PFS, progression‐free survival.