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Distribution of samples on the basis of HbA2value and mutational profile (n = 552)
| Type of mutation | Number of mutants | HbA2 ≥ 2.5, n = 124 (%) | HbA2 < 2.5, n = 428 (%) |
|---|---|---|---|
| Only β | 50 | 37 (74) | 13 (26) |
| Only α | 136 | 30 (22) | 106 (78) |
| α + β | 6 | 03 (50) | 3 (50) |
| Only HbS | 10 | 01 (10) | 9 (90) |
| HbS + α | 6 | 04 (67) | 2 (33) |
| Total | 208 | 75 (60.5) | 133 (31.1) |
Percent values in column 3 and 4 are calculated from column 2
