Demographics
| Demographic | Percentage (number/total) |
|---|---|
| Male | 55% (51/92) |
| Mean age (min–max) | 11 y (4 mo–21 y) |
| White | 96% (25/26) |
| Black | 4% (1/26) |
| Axial primary (chest, vertebrate, pelvis) | 42% (25/59) |
| Tumors with EWS–FLI (vs. EWS–ERG) | 85% (22/26) |
| Survival (patients sampled at diagnosis) | 69% (11/16) |
| Survival (patients sampled after treatment failure) | 25% (2/8) |
NOTE: Summary of available clinical data (details are given in Supplementary Table S1).