Table 4.
Genotype, allele for GYPA and GYPB, minor allele frequency, and HWE among Thai blood donors.
| Total samples (n = 565) | Known MNSs typing (n = 150) | Unknown MNSs typing (n = 415) | |
|---|---|---|---|
| GYPA and GYPB genotype frequency (n) | |||
| *M/M, *S/S | 0.000 (0) | 0.000 (0) | 0.000 (0) |
| *M/M, *S/s | 0.048 (27) | 0.033 (5) | 0.053 (22) |
| *M/M, *s/s | 0.361 (204) | 0.253 (38) | 0.400 (166) |
| *M/N, *S/S | 0.007 (4) | 0.007 (1) | 0.007 (3) |
| *M/N, *S/s | 0.076 (43) | 0.093 (14) | 0.070 (29) |
| *M/N, *s/s | 0.439 (248) | 0.520 (78) | 0.410 (170) |
| *N/N, *S/S | 0.002 (1) | 0.000 (0) | 0.002 (1) |
| *N/N, *S/s | 0.004 (2) | 0.000 (0) | 0.005 (2) |
| *N/N, *s/s | 0.064 (36) | 0.093 (14) | 0.053 (22) |
| Allele frequency (n) | |||
| GYPA*M | 0.670 (757) | 0.597 (179) | 0.696 (578) |
| GYPA*N | 0.330 (373) | 0.403 (121) | 0.304 (252) |
| MAF | 0.330 | 0.403 | 0.304 |
| HWE (χ2: DF = 2, p-value) | 18.429, 0.001 | 12.461, 0.002 | 9.458, 0.009 |
| GYPB*S | 0.073 (82) | 0.070 (21) | 0.073 (61) |
| GYPB*s | 0.927 (1,048) | 0.930 (279) | 0.927 (769) |
| MAF | 0.073 | 0.070 | 0.073 |
| HWE (χ2: DF = 2, p-value) | 1.588, 0.452 | 0.110, 0.946 | 1.630, 0.443 |
GYPA Glycophorins A, GYPB Glycophorins B, HWE Hardy-Weinberg equilibrium.