Table 2.
Selected red cell indices depicted as mean, SD (median) in beta thalassaemia trait and normal AA phenotypes with significance of differences
| Phenotype | (n) | Hb (g/dL) | RBC (×1012/L) | MCV (fL) | p value deviation from HbAA | ||
|---|---|---|---|---|---|---|---|
| Hb | RBC | MCV | |||||
| Males | |||||||
| HbAA | 5720 | 14.5, 1.2 (14.5) | 5.1, 0.4 (5.1) | 84.0, 5.7 (85) | - | - | - |
| -29 A>G | 19 | 13.6, 0.8 (13.5) | 5.8, 0.5 (5.7) | 70.8, 3.7 (70) | 0.12 | <0.001 | <0.001 |
| -88 C>T | 26 | 13.6, 1.1 (14.0) | 5.8, 0.5 (5.7) | 71.5, 4.0 (71) | 0.017 | <0.001 | <0.001 |
| -90 C>T | 5 | 13.6, 1.5 (14.1) | 6.0, 0.4 (5.7) | 71.2, 8.1 (70) | 0.8 | 0.002 | 0.0024 |
| Poly A T>C | 3 | 13.8, 0.9 (14.1) | 6.0, 0.6 (6.1) | 71.3, 0.3 (70) | 0.9 | 0.052 | 0.005 |
| IVSII-781 C>G | 2 | 14.9, 1.5 (14.9) | 5.8, 0.4 (5.8) | 79.5, 3.6 (80) | 1.0 | 0.6 | 0.13 |
| IVSII-849 A>G | 8 | 12.7, 1.5 (12.6) | 6.2, 0.4 (6.3) | 62.7, 3.5 (63) | 0.003 | <0.001 | <0.001 |
| Females | |||||||
| HbAA | 7219 | 12.5, 1.2 (12.6) | 4.5, 0.4 (4.5) | 83.0, 7.1 (84) | - | - | - |
| -29 A>G | 16 | 12.0, 0.6 (12.1) | 5.2, 0.4 (5.0) | 71.4, 3.0 (72) | 0.014 | <0.001 | <0.001 |
| -88 C>T | 32 | 12.2, 0.8 (12.3) | 5.0, 0.4 (5.0) | 73.7, 3.9 (74) | 0.056 | <0.001 | <0.001 |
| -90 C>T | 6 | 12.2, 1.0 (12.5) | 5.5, 0.7 (5.5) | 69.9, 3.2 (69) | 0.4 | <0.001 | <0.001 |
| Poly A T>C | 2 | 12.1, 0.8 (12.1) | 5.2, 0.0 (5.2) | 72.8, 5.9 (73) | 0.4 | 0.33 | 0.051 |
| IVSII-781 C>G | 3 | 12.3, 0.5 (12.2) | 4.7, 0.3 (4.7) | 82.1, 2.3 (81) | 0.5 | 0.9 | 0.5 |
| IVSII-849 A>G | 2 | 10.9, 0.1 (10.9) | 5.4, 0.3 (5.4) | 64.0, 0.0 (64) | 0.04 | 0.1 | 0.018 |
Hb total haemoglobin, RBC red cell count, MCV mean cell volume