Table 1 YY1 scoring as continuous variable
| Â | YY1 - 0 | YY1 - 1 | YY1 - 2 | YY1 - 3 | YY1 - 4 |
|---|---|---|---|---|---|
Clinical features | 4 patients | 9 patients | 4 patients | 9 patients | 15 patients |
Age | 16.3 ± 7.4 | 30.1 ± 23.9 | 13.0 ± 2.2 | 12.3 ± 8.9 | 19.7 ± 13.4 |
Gender | Â | Â | Â | Â | Â |
Male | 25.0 | 66.7 | 100.0 | 66.0 | 73.3 |
Chemonecrosis ≥ 90% | 50.0 | 33.3 | 25.0 | 33.3 | 40.0 |
Metachronous metastasis (%)* | 0 | 12.5 | 75.0 | 60.0 | 88.9 |
Mortality | 25.0 | 22.2 | 50.0 | 66.7 | 53.3 |
Mean follow -up | 50.3 ± 31.6 | 39.7 ± 21.0 | 62.0 ± 37.3 | 43.6 ± 23.0 | 48.5 ± 25.6 |