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The frequency of abnormal hemoglobins in studied individuals
| Hemoglobin variants | N | % |
|---|---|---|
| The minor β-thalassemia | 757 | 18.6 |
| Hb D disease | 39 | 0.96 |
| Hb Q trait | 20 | 0.49 |
| Hb Setif trait | 15 | 0.37 |
| Hb S trait | 1 | 0.025 |
| Hb J trait | 4 | 0.1 |
| Hb Constant Spring | 2 | 0.05 |
| Hb H disease | 12 | 0.3 |
| Hb Barts | 9 | 0.22 |
| Hb Arya | 3 | 0.07 |
| Hb X | 3 | 0.07 |
| X | 11 | 0.27 |
