Comparisons of the main characteristics of primary and secondary cases
| . | Primary ES, n = 34 . | Secondary ES, n = 34 . | P . |
|---|---|---|---|
| Mean age, y | 62 ± 21.5 | 53.5 ± 17 | .07 |
| Mean age at diagnosis, y | 57 ± 23 | 48 ± 19 | .08 |
| Sex ratio | .4 | ||
| Females | 19 (56%) | 22 (65%) | |
| Males | 15 (44%) | 12 (35%) | |
| Occurrence of ITP and AIHA | .3 | ||
| Simultaneously | 23 (68%) | 19 (56%) | |
| Sequentially | 11 (32%) | 15 (44%) | |
| Mean lowest Hb level, g/dL | 6.9 ± 1.7 | 6.1 ± 2.0 | .07 |
| Median lowest platelet level (×109/L) | 8 (1-100) | 6 (1-90) | .5 |
| Need for transfusion | 18 (53%) | 15 (44%) | .5 |
| Splenectomy | 11 (32%) | 8 (24%) | .5 |
| Initial response | 8 (72%) | 7 (87%) | .6 |
| Deaths | 9 (26%) | 7 (20.5%) | .4 |
| . | Primary ES, n = 34 . | Secondary ES, n = 34 . | P . |
|---|---|---|---|
| Mean age, y | 62 ± 21.5 | 53.5 ± 17 | .07 |
| Mean age at diagnosis, y | 57 ± 23 | 48 ± 19 | .08 |
| Sex ratio | .4 | ||
| Females | 19 (56%) | 22 (65%) | |
| Males | 15 (44%) | 12 (35%) | |
| Occurrence of ITP and AIHA | .3 | ||
| Simultaneously | 23 (68%) | 19 (56%) | |
| Sequentially | 11 (32%) | 15 (44%) | |
| Mean lowest Hb level, g/dL | 6.9 ± 1.7 | 6.1 ± 2.0 | .07 |
| Median lowest platelet level (×109/L) | 8 (1-100) | 6 (1-90) | .5 |
| Need for transfusion | 18 (53%) | 15 (44%) | .5 |
| Splenectomy | 11 (32%) | 8 (24%) | .5 |
| Initial response | 8 (72%) | 7 (87%) | .6 |
| Deaths | 9 (26%) | 7 (20.5%) | .4 |