Cox regression analysis of the relapse risk by quantitative PB PCR, histologic subtype, and clinical risk features of 51 analyzed patients
| Variable . | Relative risk of relapse . | 95% confidence interval . | P . |
|---|---|---|---|
| PB NPM-ALK more than 10 NCNs | 6.68 | 1.39-32.1 | .018 |
| Histologic subtype: not common | 2.44 | 0.42-14.1 | .32 |
| Clinical risk features* | 1.72 | 0.40-7.47 | .75 |
| Variable . | Relative risk of relapse . | 95% confidence interval . | P . |
|---|---|---|---|
| PB NPM-ALK more than 10 NCNs | 6.68 | 1.39-32.1 | .018 |
| Histologic subtype: not common | 2.44 | 0.42-14.1 | .32 |
| Clinical risk features* | 1.72 | 0.40-7.47 | .75 |
PB indicates peripheral blood; NCN, copies NPM-ALK/104copies ABL.
Clinical risk features: involvement of skin, mediastinum, liver, spleen, or lung.