Definition, incidence, and prognostic significance of risk groups derived from the Cox models.
Risk group . | Definition . | No. (%) . | O (%) . | O/E . | 5-year survival, % (95% CI) . |
|---|---|---|---|---|---|
| Event-free survival* | |||||
| Low risk | F, 1-9 y, + 18 | 214 (100) | 28 (13) | 0.51 | 86 (80-90) |
| Standard risk | F, 1-9 y, not + 18 | 350 (100) | 83 (24) | 0.94 | 75 (70-80) |
| F, 10-16 y, + 18 | |||||
| M, 1-9 y, + 18 | |||||
| High risk | M, 10-16 y | 136 (100) | 62 (46) | 2.08 | 50 (40-59) |
| M, 1-9 y, not + 18 | |||||
| F, 10-16 y, not + 18 | |||||
| Overall survival† | |||||
| Good risk | 1-9 y, +4, + 18 | 386 (100) | 15 (4) | 0.40 | 96 (93-97) |
| Poor risk | All others | 314 (100) | 53 (17) | 1.75 | 84 (79-88) |
Risk group . | Definition . | No. (%) . | O (%) . | O/E . | 5-year survival, % (95% CI) . |
|---|---|---|---|---|---|
| Event-free survival* | |||||
| Low risk | F, 1-9 y, + 18 | 214 (100) | 28 (13) | 0.51 | 86 (80-90) |
| Standard risk | F, 1-9 y, not + 18 | 350 (100) | 83 (24) | 0.94 | 75 (70-80) |
| F, 10-16 y, + 18 | |||||
| M, 1-9 y, + 18 | |||||
| High risk | M, 10-16 y | 136 (100) | 62 (46) | 2.08 | 50 (40-59) |
| M, 1-9 y, not + 18 | |||||
| F, 10-16 y, not + 18 | |||||
| Overall survival† | |||||
| Good risk | 1-9 y, +4, + 18 | 386 (100) | 15 (4) | 0.40 | 96 (93-97) |
| Poor risk | All others | 314 (100) | 53 (17) | 1.75 | 84 (79-88) |