Results of Univariate Analysis for Known Clinical Prognostic Factors and for ALK Protein Expression
| Factor . | Association With Improved OS (P Value) . |
|---|---|
| Age ≤60 yr | .007 |
| Normal serum LDH | <.00001 |
| Good performance status | .03 |
| Stages I/II | .23 |
| Extranodal sites ≤1 | .012 |
| IPI score ≤3 | .00001 |
| ALK positivity | .0003 |
| Factor . | Association With Improved OS (P Value) . |
|---|---|
| Age ≤60 yr | .007 |
| Normal serum LDH | <.00001 |
| Good performance status | .03 |
| Stages I/II | .23 |
| Extranodal sites ≤1 | .012 |
| IPI score ≤3 | .00001 |
| ALK positivity | .0003 |
Abbreviations: OS, overall survival; LDH, lactate dehydrogenase; good performance status, ECOG score <2; IPI, International Prognostic Index.