Table 4.
Summary of Survival Statistics
| Variable | N | 2-year FFP (%) (95% CI) | P** | 2-year EFS (%) (95% CI) | P** | 2-year OS (%) (95% CI) | P** |
|---|---|---|---|---|---|---|---|
| Overall | 92 | 71 (61-81) | 67 (57-77) | 83 (75-91) | |||
| Risk factors | |||||||
| 0 | 24 | 96 (88-100) | 83 (64-100) | 80 (58-100) | |||
| 1 | 37 | 72 (56-88) | 68 (52-84) | 86 (74-98) | |||
| 2 | 23 | 67 (46-88) | 67 (46-88) | 91 (79-100) | |||
| 3 | 8 | 14 (0-40) | <0.0001 | 13 (0-36) | 0.0004 | 42 (1-83) | 0.07 |
| PET status* | |||||||
| Negative | 48 | 87 (76-98) | <0.0001 | 79 (67-91) | 0.003 | 91 (82-100) | 0.07 |
| Positive | 29 | 47 (24-70) | 45 (22-68) | 77 (58-96) | |||
| Initial remission duration | |||||||
| Non-IF | 56 | 86 (76-96) | 0.0003 | 82 (71-93) | 0.0002 | 89 (79-99) | 0.025 |
| IF | 36 | 48 (30-66) | 44 (26-62) | 74 (59-89) | |||
| B symptoms | |||||||
| Absent | 53 | 83 (72-94) | 0.008 | 79 (67-91) | 0.005 | 85 (73-97) | 0.18 |
| Present | 39 | 56 (38-74) | 52 (36-68) | 79 (65-93) |
*
N= 77, as only 77 of the 92 patients had pre-transplant PET exams
**
All P values are from the log rank test; 1 degree of freedom for variables with two groups; 3 degrees of freedom for number of risk factors