Table 3.
Short-Term Efficacy and the Efficacy Comparison of Patients Received Previous Radiotherapy.a
| Types | n | Short-term efficacy | Significant efficacy rate (%) | Efficacy rate (%) | Invalid rate (%) | CR + SR | MR + NR | χ2 value | P value | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CR | SR | MR | NR | (CR + SR)/n | (CR + SR + MR)/n | NR/n | ||||||
| Radiation dose | ||||||||||||
| 50-60 Gy | 14 | 1 | 5 | 5 | 3 | 42.9 | 78.6 | 21.4 | 6 | 8 | 5.714 | .017 |
| >60 Gy | 6 | 3 | 3 | 0 | 0 | 100 | 100 | 0 | 6 | 0 | ||
| Tumor status after RT | ||||||||||||
| Recurrence | 12 | 4 | 4 | 2 | 2 | 66.7 | 83.3 | 16.7 | 8 | 4 | 0.556 | .456 |
| Residual | 8 | 0 | 4 | 3 | 1 | 50.0 | 87.5 | 12.5 | 4 | 4 | ||
| T stage before PDT | ||||||||||||
| T3 | 9 | 3 | 3 | 2 | 1 | 66.7 | 88.9 | 11.1 | 6 | 3 | 0.303 | .582 |
| T4 | 11 | 1 | 5 | 3 | 2 | 54.5 | 81.8 | 18.2 | 6 | 5 | ||
| Interval between RT and PDT | ||||||||||||
| ≤6 months | 7 | 0 | 3 | 3 | 1 | 42.9 | 85.7 | 14.3 | 3 | 4 | 0.319 | .251 |
| >6 months | 13 | 4 | 5 | 2 | 2 | 69.2 | 84.6 | 15.4 | 9 | 4 | ||
Abbreviations: CR, complete response; MR, minor response; NR, no response; PDT, photodynamic therapy; RT, radiation; SR, significant response.
a Recurrence: lesions that relapsed at the primary site after having once achieved a CR after RT; Residual: lesions that remained at the primary site without the achievement of a CR after RT.