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| Cox analyses | ||||
|---|---|---|---|---|
| EFS from study entry | N | HR | 95% CI | p-value |
| univariate | ||||
| age: 16-18 yr | 341 | 1.00 | ||
| age: 19-21 yr | 176 | 1.31 | 1.05 - 1.63 | 0.015 |
| COG studies | 281 | 1.00 | ||
| Adult studies | 236 | 1.35 | 1.09 - 1.66 | 0.006 |
| multivariate | ||||
| age in years (continuous) | 1.06 | 0.97 - 1.15 | 0.238 | |
| COG studies | 1.00 | |||
| Adult studies | 1.17 | 0.86 - 1.60 | 0.319 | |
| age: 16-18 yr | 1.00 | |||
| age: 19-21 yr | 1.13 | 0.85 - 1.50 | 0.408 | |
| COG studies | 1.00 | |||
| Adult studies | 1.25 | 0.95 - 1.65 | 0.119 | |
