Table 1.
Characteristics of the patients and comparison of primary and secondary WAIHA cases
| Characteristics of the patients | All patients | Secondary WAIHA | Primary WAIHA | p value |
|---|---|---|---|---|
| Sex (n) | ||||
| Female/male | 38/22 | 9/7 | 29/15 | 0.492 |
| Age (median, range) (years old) | 52 (20–85) | 55 (20–76) | 51 (30–85) | 0.544 |
| Hb (gr/dl) (median, range) | 7 (2.8–11.2) | 6.95 (3.5–11.2) | 7.1 (2.8–10.1) | 0.698 |
| Thrombocyte (× 109/L) median, range | 459 (158–758) | 231 (166–466) | 262 (158–758) | 0.186 |
| Reticulocyte (%) median, range | 9 (1.1–40) | 9 (0.7–33) | 10 (0.7–40) | 0.629 |
| LDH (IU/L) | 483 (280–1896) | 310 (280–911) | 546 (345–1896) | 0.205 |
| Indirect bilirubin (mg/dl) | 3.3 (2.4–6.2) | 3.2 (2.4–5.5) | 3.3 (2.8–6.2) | 0.451 |
| Mixed positive DAT test (n (%30) | 21 (30%) | 11 (68.7%) | 10 (22.7%) | 0.04 |
| Median number of erythrocyte suspension units transfused | 3 (1–6) | 2(1–4) | 2(1–6) | 0.31 |
WAIHA warm autoimmune hemolytic anemia, LDH lactate dehydrogenase, DAT direct antiglobulin test, Hb hemoglobin and RBC red blood cell