Comparison of hematological features of patients with both Southeast Asian ovalocytosis (SAO) and the β-thalassemia trait, pure SAO, the pure β-thalassemia trait, and controls_ Values are presented as mean± SD_
| Parameters | SAO | Coinheritance of SAO and β-thalassemia trait | Control Parameters for pure β thalassemia trait and controls were derived from randomly selected subjects for the purpose of comparison. NE = not examined | Pure β thalassemia trait Parameters for pure β thalassemia trait and controls were derived from randomly selected subjects for the purpose of comparison. NE = not examined | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| K3 (2nd daughter) | K1 (propositus) | K2 (1st daughter) | K4 (Son) | Female (n = 10) | Male (n = 10) | Female (n = 10) | Male (n = 10) | |||
| Full blood counts | ||||||||||
| RBC(1012/L) | 4.6 | 4.6 | 5.0 | 6.0 | 4.3±0.8 | 5.1 + 1.0 | 4.3±0.7 | 5.4±0.9 | ||
| Hb(g/dL) | 13.3 | 10.2 | 10.0 | 12.5 | 12.6±2.0 | 14.3 ±2.3 | 11.6 + 0.5 | 13.4±1.2 | ||
| Hematocrit (%) | 37.2 | 31.8 | 31.1 | 37.9 | 38.4 ±5.3 | 43.5±6.1 | 36.3 ±2.0 | 42.0±4.3 | ||
| Mean corpuscular volume (fL) | 80.9 | 68.1 | 62.1 | 63.0 | 88.7 ±8.5 | 86.3 ±8.4 | 76.7 ±3.8 | 73.1+ 3.5 | ||
| Mean corpuscular hemoglobin | 28.9 | 21.8 | 20.0 | 20.8 | 29.1±3.2 | 28.9 ±2.9 | 25.3 ±1.8 | 24.0±1.3 | ||
| (MCH)(pg) | ||||||||||
| MCH concentration (g/dL) | 35.8 | 32.1 | 32.2 | 33.0 | 32.8 ±2.5 | 33.5+2.1 | 31.5±1.0 | 32.8±1.0 | ||
| Red cell distribution width-CV | 14.6 | 17.2 | 16.3 | 19.4 | 13.8 + 1.9 | 17.2 ±2.0 | 15.2±0.6 | 14.9±2.0 | ||
| RDW-SD | 42.9 | 41.1 | 35.2 | 40.2 | 46.1±5.1 | 46.3 ±4.8 | 38.1±3.2 | 38.4 ±2.8 | ||
| Peripheral blood smear | ||||||||||
| Ovalocytes | Yes | Yes | Yes | Yes | No | No | ||||
| Macrocytes | Yes | No | No | No | No | No | ||||
| Microcytes | No | Yes | Yes | Yes | No | Yes | ||||
| Stomatocytes | No | Yes | Yes | Yes | No | No | ||||
| Hypochromic microcytosis | No | Yes | Yes | Yes | No | Yes | ||||
| Hb Analysis | ||||||||||
| HbA2(%) | 3.0 | 5.0 | 5.7 | 6.0 | 1-3 | 6.0±0.8 | ||||
| HbF(%) | 0.3 | 1.5 | 3.6 | 2.2 | <1 | 2± 1 | ||||
| Hematological and clinical features | ||||||||||
| Anaemia | No | Mild | Mild | No | No | Mild | ||||
| Dizziness | Yes | Yes | No | No | NE | NE | ||||
| Tiredness | Yes | Yes | Yes | No | NE | NE | ||||
| Shortness of breath | Yes | Yes | Yes | No | NE | NE | ||||