TABLE 1.

Clinical characteristics of patients in the training and validation cohort.

Clinical factors	Training cohort (n = 44)	Clinical factors	Validation cohort (n = 57)
Age (years old, n, %)	—	Age (years old, n, %)	—
≤24	28 (63.7%)	≤24	45 (78.9%)
>24	16 (36.3%)	>24	12 (21.1%)
Sex (n, %)	—	Sex (n, %)	—
Male	2/8 (63.7%)	Male	31 (54.4%)
Female	16 (36.3%)	Female	26 (45.6%)
Tumor status (n, %)	—	Tumor status (n, %)	—
Localized	32 (72.7%)	Non-metastatic	38 (66.7%)
Recurrence or Metastasis	12 (27.3%)	Metastatic	18 (31.6%)
—	—	NA	1 (1.7%)