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Comparisons of follow-up survival indexes [number of case (%)].
| Group | No. of cases | TCP | Regional lymph node control rate | Distant metastasis-free rate | Tumor-free survival rate | Recurrence rate | Overall survival rate |
|---|---|---|---|---|---|---|---|
| Control group | 62 | 55 (88.7) | 5 (91.9) | 50 (80.6) | 45 (72.6) | 6 (9.7) | 60 (96.8) |
| Observation group | 62 | 54 (87.1) | 58 (93.5) | 51 (82.3) | 44 (71.0) | 4 (6.5) | 60 (96.8) |
| χ2 | 0.076 | 0.000 | 0.053 | 0.040 | 0.435 | 0.000 | |
| P-value | 0.783 | 1.000 | 0.817 | 0.842 | 0.510 | 1.000 |
