Cox analysis of variables found to be significant by log-rank analysis
Variable . | Values . | Hazard ratio . | 95% CI . | P . |
|---|---|---|---|---|
| Event-free survival | ||||
| Trisomy 18 | 0 = no; 1 = yes | 0.51 | 0.38-0.70 | < .001 |
| Sex | 0 = male; 1 = female | 1.81 | 1.30-2.53 | < .001 |
| Age | 0 = 1-9 y; 1 = 10-16 y | 2.06 | 1.34-3.18 | .001 |
| Trisomy 10* | 0 = no; 1 = yes | NA | NA | > .01 |
| Modal number* | 0 = 51-53; 1 = 54-65 | NA | NA | > .01 |
| Overall survival | ||||
| Age, y | 0 = 1-9 y; 1 = 10-16 y | 4.01 | 2.28-7.04 | < .001 |
| Trisomy 4 | 0 = no; 1 = yes | 0.43 | 0.26-0.69 | .001 |
| Trisomy 18 | 0 = no; 1 = yes | 0.44 | 0.27-0.72 | .001 |
| Modal number* | 0 = 51-53; 1 = 54-65 | NA | NA | > .01 |
Variable . | Values . | Hazard ratio . | 95% CI . | P . |
|---|---|---|---|---|
| Event-free survival | ||||
| Trisomy 18 | 0 = no; 1 = yes | 0.51 | 0.38-0.70 | < .001 |
| Sex | 0 = male; 1 = female | 1.81 | 1.30-2.53 | < .001 |
| Age | 0 = 1-9 y; 1 = 10-16 y | 2.06 | 1.34-3.18 | .001 |
| Trisomy 10* | 0 = no; 1 = yes | NA | NA | > .01 |
| Modal number* | 0 = 51-53; 1 = 54-65 | NA | NA | > .01 |
| Overall survival | ||||
| Age, y | 0 = 1-9 y; 1 = 10-16 y | 4.01 | 2.28-7.04 | < .001 |
| Trisomy 4 | 0 = no; 1 = yes | 0.43 | 0.26-0.69 | .001 |
| Trisomy 18 | 0 = no; 1 = yes | 0.44 | 0.27-0.72 | .001 |
| Modal number* | 0 = 51-53; 1 = 54-65 | NA | NA | > .01 |
CI indicates confidence interval; NA, not applicable.
These variables were removed from the model; therefore, hazard ratios and CIs were not determined for them in the final model.