Table 3. Descriptive statistics for blood parameters of the study sample categorized according to β-thalassemia carrier status.
Carriers (n=42), Non-carriers (n=376). P value < 0.05: significance level from Mann-Whitney U test.
| Parameter | Carrier status based on HbA2 ≥ 3.5% | ||||
|---|---|---|---|---|---|
| Carrier (n=42) | Non carrier (n=376) | MWU | |||
| Mean | SD | Mean | SD | (p) | |
| MCV (fL) | 69.5 | 11.3 | 82.5 | 7.9 | <0.001 |
| MCH (fmol) | 1.48 | 0.4 | 1.72 | 0.2 | <0.001 |
| MCHC (mmol/L) | 20.5 | 0.8 | 20.8 | 0.8 | 0.002 |
| RDW - CV (%) | 14.7 | 1.7 | 14.1 | 2.0 | 0.001 |
| Hb Concentration (g/L) | 128 | 18 | 130 | 22 | 0.470 |
| Hematocrit (L/L) | 0.38 | 0.04 | 0.38 | 0.06 | 0.918 |
| RBC count (1012/L) | 5.7 | 0.95 | 4.7 | 0.65 | <0.001 |
| HbA2 (%) | 5.9 | 1.7 | 2.4 | 0.53 | <0.001 |