Cox regression analysis of the relapse risk by quantitative BM PCR, histologic subtype, and clinical risk features of 74 analyzed patients
| Variable . | Relative risk of relapse . | 95% confidence interval . | P . |
|---|---|---|---|
| BM NPM-ALK more than 10 NCNs | 4.74 | 1.57-14.3 | .006 |
| Histologic subtype: not common | 3.00 | 0.84-10.71 | .09 |
| Clinical risk features* | 1.67 | 0.53-5.23 | .38 |
| Variable . | Relative risk of relapse . | 95% confidence interval . | P . |
|---|---|---|---|
| BM NPM-ALK more than 10 NCNs | 4.74 | 1.57-14.3 | .006 |
| Histologic subtype: not common | 3.00 | 0.84-10.71 | .09 |
| Clinical risk features* | 1.67 | 0.53-5.23 | .38 |
BM indicates bone marrow; NCN, copies NPM-ALK/104 copies ABL.
Clinical risk features: involvement of skin, mediastinum, liver, spleen, or lung.