| Sample group | Number | MCH (pg) | MCV (fL) | ||||||
| min | max | mean | SD | min | max | mean | SD | ||
| All samples | 4920 | 15.8 | 36.1 | 28.99 | 2.83 | 47.1 | 102.8 | 86.61 | 7.63 |
| Non-thalassemia | 4463 | 18.8 | 36.1 | 29.73 | 1.56 | 59.4 | 102.8 | 88.60 | 4.12 |
| Thalassemia | 457 | 15.8 | 28.9 | 21.80 | 2.28 | 47.1 | 81.9 | 67.15 | 6.63 |
| α-thalassemia | 311 | 15.8 | 28.9 | 22.37 | 2.31 | 47.1 | 81.9 | 69.13 | 6.39 |
| β-thalassemia | 133 | 18.2 | 26.7 | 20.45 | 1.63 | 55.2 | 80 | 62.50 | 4.79 |
| α & β-thalassemia | 13 | 19.5 | 24.1 | 22.00 | 1.44 | 60.2 | 74.2 | 67.32 | 4.27 |