HRs and Modification of Salvage Treatment Due to 18F-FDG PET According to Risk Score (n = 52)
| Risk score | Treatment planning | No. of patients | No. of deaths (%) | HR for death (95% CI) | P value |
|---|---|---|---|---|---|
| 0–1 | 27 | 2 (7.4) | 1 (reference) | ||
| No change | 10 | 1 (10.0) | |||
| Change: curative intent | 7 | 0 (0) | |||
| Change: palliation | 10 | 1 (10.0) | |||
| 2 | 19 | 10 (52.6) | 6.91 (1.49–32.14) | 0.014 | |
| No change | 5 | 3 (60.0) | |||
| Change: curative intent | 2 | 0 (0) | |||
| Change: palliation | 12 | 7 (58.3) | |||
| 3 | 6 | 5 (83.3) | 60.46 (9.68–378.09) | 0 < 0.0001 | |
| No change | 1 | 1 (100) | |||
| Change: curative intent | 0 | 0 (0) | |||
| Change: palliation | 5 | 4 (80.0) |
* P values were determined using Cox proportional hazards model.