Table 1.
Pretreatment clinical characteristics and outcome of older patients with de novo acute myeloid leukemia
| Characteristic | Patients (n=423) |
|---|---|
| Age, years | |
| Median | 69 |
| Range | 60–85 |
|
| |
| Sex, female, n(%) | |
| 172 (41) | |
|
| |
| Race, n (%) | |
| White | 381 (92) |
| Nonwhite | 33 (8) |
|
| |
| Hemoglobin, g/dl | |
| Median | 9.3 |
| Range | 3.0–15.0 |
|
| |
| Platelet count, × 109/l | |
| Median | 63 |
| Range | 4–989 |
|
| |
| WBC count, × 109/l | |
| Median | 21.1 |
| Range | 0.6–450.0 |
|
| |
| Blood blasts, % | |
| Median | 43 |
| Range | 0–99 |
|
| |
| Bone marrow blasts, % | |
| Median | 66 |
| Range | 0–97 |
|
| |
| Extramedullary involvement, n (%) | 85 (22) |
|
| |
| Complete remission, n (%) | 233 (55) |
|
| |
| Disease-free survival | |
| Median, months | 7.3 |
| % Disease-free at 1 year (95% CI) | 33 (27–40) |
| % Disease-free at 3 years (95% CI) | 14 (10–19) |
| % Disease-free at 5 years (95% CI) | 11 (8–16) |
|
| |
| Overall survival | |
| Median, months | 9.4 |
| % Alive at 1 year (95% CI) | 39 (35–44) |
| % Alive at 3 years (95% CI) | 14 (11–18) |
| % Alive at 5 years (95% CI) | 10 (7–13) |
Abbreviations: n, number; WBC, white blood cell count.