Table 1.
Maternal and neonate DNA samples by ethnicity successfully genotyped at the AR (CAG)n locus
| Mothers | Neonates | Total | |||||
|---|---|---|---|---|---|---|---|
| Center | Ethnicity | No. Samples |
No. Chromosomes |
No. Samples |
No. Chromosomesa |
No. Samples |
No. Chromosomes |
| Belfast | Caucasian (United Kingdom) | 1331 | 2662 | 1045 | 1537 | 2376 | 4199 |
| Manchester | Caucasian (United Kingdom) | 982 | 1964 | 548 | 805 | 1530 | 2769 |
| Brisbane | Caucasian (Australia) | 963 | 1926 | 703 | 1043 | 1666 | 2969 |
| Newcastle | Caucasian (Australia) | 491 | 982 | 418 | 618 | 909 | 1600 |
| Toronto | Caucasian (North America) | 654 | 1308 | 651 | 977 | 1305 | 2285 |
| Total Caucasian | 4421 | 8842 | 3365 | 4980 | 7786 | 13 822 | |
| Bangkok | Thai | 1494 | 2988 | 1742 | 2606 | 3236 | 5594 |
| Barbados | Afro-Caribbean | 1119 | 2238 | 1142 | 1695 | 2261 | 3933 |
| Bellflower | Hispanic (North America) | 780 | 1560 | 770 | 1156 | 1550 | 2716 |
| Total | 7814 | 15 628 | 7019 | 10 437 | 14833 | 26 065 | |
a
Neonate chromosome numbers are not 2n because this marker is on the X chromosome and approximately 50% of the neonates were male.